United States Office of Land
Environmental Protection and
Agency Emergency Management
EPA 550-B-24-001
April 2025
www.epa.gov/epcra
LIST OF LISTS
Consolidated List of Chemicals Subject to the
Emergency Planning and Community
Right-To-Know Act (EPCRA),
Comprehensive Environmental Response,
Compensation and Liability Act (CERCLA),
Section 112(r)(7) of the Clean Air Act (CAA), and
Section 311 (j)(5) of the Clean Water Act (CWA)
• EPCRA Section 302 Extremely Hazardous Substances
• CERCLA Hazardous Substances
• EPCRA Section 313 Toxic Chemicals
• CAA Section 112(r)(7) Regulated Chemicals
• CWA Section 311 (j)(5) Hazardous Substances
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Table of Contents
EPA 550-B-24-001
TABLE OF CONTENTS
Table of Contents i
Introduction ii
A. Chemical Categories iii
B. CAA Section 112(r)(7) List of Substances for Accidental Release Prevention iv
C. CERCLA Hazardous Substances v
D. CWA Hazardous Substance Facility Response Plans Threshold Quantities vi
E. EPCRA Section 302 Extremely Hazardous Substances (EHSs) vii
F. EPCRA Section 313 Toxic Chemicals (a.k.a., Toxics Release Inventory (TRI) Chemicals) viii
G. RCRA Hazardous Wastes xi
Summary of Codes xii
Consolidated List of Chemicals (By Alphabetical Name) 1
Appendix A: Consolidated List of Chemicals (By CASRN) A-l
Appendix B: Radionuclides Listed Under CERCLA B-l
Appendix C: RCRA Waste Streams and Unlisted Hazardous Wastes C-l
Appendix D: EPCRA Section 313 Toxic Release Inventory (TRI) Chemical Categories D-l
Appendix E: CERCLA Hazardous Substances - Chemical Categories E-l
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Introduction
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INTRODUCTION
LIST OF LISTS
Consolidated List of Chemicals Subject to
the Emergency Planning and Community Right-to-Know Act (EPCRA);
Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA);
Section 112(r)(7) of the Clean Air Act (CAA); and
Section 311 of the Clean Water Act (CWA)
This consolidated chemical list includes chemicals subject to reporting requirements under the
Emergency Planning and Community Right-to-Know Act (EPCRA) which is also known as Title III
of the Superfund Amendments and Reauthorization Act of 1986 (SARA), the Comprehensive
Environmental Response, Compensation and Liability Act (CERCLA), section 112(r)(7) of the
Clean Air Act (CAA), and section 311 of the Clean Water Act (CWA). This consolidated list does
not include all hazardous chemicals subject to the reporting requirements in EPCRA sections
311 and 312, for which safety data sheets (SDS)1 must be developed under the Hazard
Communication Standard [29 CFR 1910.12001. These hazardous chemicals are identified by
broad criteria, rather than by a defined list of chemicals or substances. There are over 500,000
products that satisfy the criteria. See 40 CFR Part 370 for more information.
This consolidated list has been prepared to help facilities handling chemicals determine
whether they need to submit reports under sections 302 and 313 of EPCRA and determine if
releases of chemicals are reportable under section 102 and 103 of CERCLA and section 304 of
EPCRA. It will also help facilities determine whether they will be subject to accident prevention
regulations under CAA section 112(r)(7) or the facility response planning regulations under
CWA section 311. The consolidated list is in alphabetical order; Appendix A lists the chemicals in
CAS number order. This document also includes a list of radionuclides reportable under CERCLA
(refer to Appendix B); waste stream codes for listed and unlisted hazardous wastes under the
Resource Conservation and Recovery Act (RCRA) (refer to Appendix C); definitions of chemical
categories listed under EPCRA section 313 (refer to Appendix D);and definitions or clarifications
of CERCLA chemical categories (refer to Appendix E).
Note: This document should be used only as a reference tool, not as a definitive source of
compliance information. Reporting requirements for EPCRA are published in the Code of Federal
Regulations (CFR), 40 CFR parts 355, 370, and 372. The list of EPCRA EHS chemicals can be found
at 40 CFR 355 Appendix A (alphabetical order) and Appendix B (CAS number order). The list of
TRI chemicals can be found at 40 CFR 372.65. Reporting requirements for releases of CERCLA
chemicals are in 40 CFR part 302, with list of CERCLA hazardous substances in 40 CFR 302.4.
Regulatory requirements for accident prevention CAA section 112(r)(7) are published in 40 CFR
1 Formerly named material safety data sheets (MSDS),
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part 68 with the list of Risk Management Program chemicals in 40 CFR 68.130. The list ofCWA
hazardous substances can be found at 40 CFR 116.4A and their threshold quantities are
calculated as l,000x the reportable quantities listed in 40 CFR 117.3 as per 40 CFR 118.3(a).
The chemicals on the consolidated list are ordered both by the Chemical Abstracts Service (CAS)
registry number and alphabetically. Categories of chemicals which generally do not have CAS
registry numbers, but which are cited under CERCLA, have "Not Applicable (N.A.)" listed in
place of the CAS number. If the category of chemical is on EPCRA section 313 list, then the
section 313 category code is also included in the CAS number column.
This document lists chemicals referenced under six federal statutory provisions, discussed
below. More than one chemical name may be listed for one CAS number because the same
chemical may appear on different lists under different names. For example, for CAS number
8001-35-2, the names toxaphene (from the section 313 list), camphechlor (from the section 302
list), and camphene, octachloro- (from the CERCLA list) all appear on this consolidated list. The
chemical names on the consolidated lists generally are those names used in the regulatory
programs developed under EPCRA, CERCLA, CAA section 112(r)(7), and CWA section 311(j)(5),
but each chemical may have other synonyms that do not appear on these lists.
A. Chemical Categories
The CERCLA and EPCRA section 313 (TRI) lists include a number of chemical categories as well
as specific chemicals. Categories appear on this consolidated list at the beginning of the CAS
number order listing. The specific chemicals or substances that are included in the CERCLA
category Radionuclides can be found in Appendix B. Appendix D contains explanations and
definitions for the EPCRA section 313 chemical categories. For the CERCLA listed categories
reported with CAS number of N.A., Appendix E contains information available on the CERCLA
chemical categories from their original statutory and regulatory sources.
Specific chemicals listed as members of the diisocyanates, dioxin and dioxin-like compounds,
hexabromocyclododecane, nonylphenol, nonylphenol ethoxylates, and PAC categories under
EPCRA section 313 are included in the list of specific chemicals by CAS number, not in the
category listing.
EPA has attempted to identify those chemicals on the consolidated list that are clearly
reportable under one or more of the EPCRA section 313 chemical categories. For example,
mercuric acetate (CAS number 1600-27-7), listed under section 302, is not specifically listed
under section 313, but is reportable under the section 313 "Mercury Compounds" category
(no CAS number). Listed chemicals that have been identified as being reportable under one or
more EPCRA section 313 categories are identified by "313c" in the Sec. 313 table column.
The chemicals on the consolidated list have not been systematically evaluated to determine
whether they fall into any of the CERCLA listed categories. Some chemicals not specifically
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listed under CERCLA may be subject to CERCLA reporting as part of a category. For example,
strychnine sulfate (CAS number 60-41-3), listed under EPCRA section 302, is not individually
listed on the CERCLA list, but is subject to CERCLA reporting under the listing for strychnine
and salts (CAS number 57-24-9), with an RQ of 10 pounds. Similarly, nicotine sulfate (CAS
number 65-30-5) is subject to CERCLA reporting under the listing for nicotine and salts (CAS
number 54-11-5, RQ 100 pounds), and warfarin sodium (CAS number 129-06-6) is subject to
CERCLA reporting under the listing for warfarin and salts, concentration >0.3% (CAS number
81-81-2, RQ 100 pounds).
Note that some CERCLA listings, although they include CAS numbers, are for general
categories and are not restricted to the specific CAS number (e.g., warfarin and salts). The
CERCLA list also includes a number of generic categories that have not been assigned RQs;
chemicals falling into these categories are considered CERCLA hazardous substances, but
they are not required to be reported under CERCLA unless otherwise listed under CERCLA
with an RQ.
B. CAA Section 112(r)(7) List of Substances for Accidental Release Prevention
Under the accident prevention provisions of section 112(r)(7) of the CAA (also known as Risk
Management Program or RMP), EPA developed a list of 77 toxic substances and 63 flammable
substances. Threshold quantities (TQs) were established for these substances. The list and TQs
identify processes subject to accident prevention regulations. The list of substances, TQs, and
requirements for risk management programs for accidental release prevention are found in
40 CFR part 68. This consolidated list includes both the common name for each listed chemical
under section 112(r)(7) and the chemical name, if different from the common name, as separate
listings.
The CAA section 112(r)(7) list includes several substances in solution that are covered only in
concentrations above a specified level. These substances include ammonia (concentration 20% or
greater) (CAS number 7664-41-7); hydrochloric acid (37% or greater) (CAS number 7647-01-0);
hydrogen fluoride/hydrofluoric acid (50% or greater) (CAS number 7664-39-3); and nitric acid
(80% or greater) (CAS number 7697-37-2). Hydrogen chloride (anhydrous) and ammonia
(anhydrous) are listed, in addition to the solutions of these substances, with different TQs. Only
the anhydrous form of sulfur dioxide (CAS number 7446-09-5) is covered. These substances are
presented on the consolidated list with the concentration limit or specified form (e.g.,
anhydrous), as they are listed under CAA section 112(r)(7). Flammable fuels used as a fuel or held
for sale as a fuel at a retail facility are not subject to the rule.
TQ. The CAA section 112(r)(7) TQ column in the consolidated list shows the TQs (in pounds)
for chemicals listed for accidental release prevention. The TQ applies to the quantity of
substance in a process, not at the facility as a whole.
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C. CERCLA Hazardous Substances
Releases of CERCLA hazardous substances, in quantities equal to or greater than their
reportable quantity (RQ), are subject to reporting to the National Response Center (NRC)
under CERCLA. Notification requirements for these releases are found in 40 CFR 302. Such
releases are also subject to State and local reporting under section 304 of EPCRA. CERCLA
hazardous substances, and their reportable quantities, are listed in 40 CFR part 302. Table
302.4. Radionuclides listed under CERCLA are provided in a separate list in Appendix B of
this document, with RQs in Curies. Chemical categories under CERCLA (including metal
compound categories), which have "N.A." listed for the CAS Number in the consolidated
table, are also listed in Appendix E of this document with further explanation of each
chemical category, where information was available.
RQ. The CERCLA RQ column in the consolidated list shows the RQs (in pounds) for
chemicals that are CERCLA hazardous substances.
Ammonia and ammonium hydroxide. Under 40 CFR 302.4, the CERCLA Hazardous
substances ammonia and ammonium hydroxide are listed separately, with RQs of 100 and
1,000 pounds, respectively. Ammonium hydroxide is an aqueous solution of ammonia.
Metals. For metals listed under CERCLA (antimony, arsenic, beryllium, cadmium, chromium,
copper, lead, nickel, selenium, silver, thallium, and zinc), no reporting of releases of the solid
form is required if the mean diameter of the pieces of the solid metal released is greater than
100 micrometers (0.004 inches) (Ref: Footnote after Table 302.4 in 40 CFR 302.4). The RQs
shown on the consolidated list apply to smaller particles.
Note that the consolidated list does not include all CERCLA regulatory synonyms. See 40 CFR
part 302, Table 302.4 for a complete list.
Sulfur monochloride. (formula S2CI2) is listed with an incorrect CAS numbers of 12771-08-3,
which is found on the CERCLA Hazardous Substances list. The correct CAS number should be
10025-67-9, however, the List of Lists will still include the CAS number of 12771-08-3 because
it has not been changed on the CERCLA list. According to the Chemical Abstract Services
which assigns CAS numbers, the correct CAS number for sulfur monochloride is 10025-67-9,
which is now included on the List of Lists with an explanatory footnote.
CAS number 12771-08-3 is assigned to the substance sulfur chloride (formula SCI") which was
listed as a synonym for sulfur monochloride when EPA finalized the Clean Water Act
Designation of Hazardous Substances rule [43 FR 10474. March 13. 19781. The CAS number
10025-67-9 is used for sulfur monochloride on EPA's TSCA Inventory and EPA's Substance
Registry Services lists. See https://cdxapps.epa.gov/oms-substance-registry-services/search
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D. CWA Hazardous Substance Facility Response Plans Threshold Quantities
EPA designated a list of CWA hazardous substances (including any isomers and hydrates, as
well as any solutions and mixtures containing these substances) in 40 CFR part 116
[43 FR 10474. March 13.19781 and subsequently established reportable quantities (RQs) for
those substances in 40 CFR part 117, the discharge of which at or above the RQ is a violation
of CWA section 311(b)(3) and requires notice, including notice as set forth in 40 CFR 117.21
and the National Contingency Plan in 40 CFR 300.125(a) [44 FR 50766. August 29. 19791. The
RQs constitute the quantities EPA deemed may be harmful and were initially based on a five-
level rating system derived from acute aquatic toxicity and set in 40 CFR 117.3. The most
acutely toxic CWA hazardous substances were classified as Category X and assigned a one-
pound RQ, which was determined based on the smallest container commonly used in
commerce. Under EPA's scaled system, EPA assigned the other categories on a proportional
basis. If the upper aquatic toxicity limit of a category is 10 times the upper limit of the
preceding, more toxic category, then the harmful quantity was set as 10 times larger,
excepting category D, at five times larger, and so forth. CWA RQs (in pounds) for the five
categories are X: 1, A: 10, B: 100, C: 1,000, and D: 5,000.
The CWA, as amended by the Oil Pollution Act of 1990 [33 U.S.C. 2701 et seql. states, "The
President shall issue regulations which require an owner or operator of a tank vessel or
facility ... to prepare and submit to the President a plan for responding, to the maximum
extent practicable, to a worst case discharge, and to a substantial threat of such a discharge,
of oil or a hazardous substance" [33 U.S.C. 1321(i)(5)(A)(i)1. The statute defines a covered
facility as . . [an] onshore facility that, because of its location, could reasonably be expected
to cause substantial harm to the environment by discharging into or on the navigable waters,
adjoining shorelines, or the exclusive economic zone" [33 U.S.C. 1321(i)(5)(C)(iv)1. In 40 CFR
118, EPA defined the threshold quantity (TQ) for onshore non-transportation related facilities
as the maximum quantity onsite for any CWA hazardous substance listed at 40 CFR 116.4 at
any time, at or over 1,000 times the Reportable Quantity in pounds (kilograms) found at
40 CFR 117.3. If a facility exceeds a TQ and meets other applicability criteria in 40 CFR 118.3,
the facility owner or operator must submit a Facility Response Plan (FRP) to EPA. In some
instances, a facility owner or operator will only need to submit a Substantial Harm
Certification Form [40 CFR 118. Appendix A1 to EPA.
Edit notes for hazardous substances include:
Acetyl chloride is listed with an incorrect CAS number of 79-36-7 on the 116.4 list. The
correct CAS number should be 75-36-5 according to Comptox.2
Arsenic disulfide is listed with an incorrect CAS number of 1303-32-8 on the 116.4 list. The
correct CAS number should be 12044-79-0 according to Comptox.3
2 Acetyl chloride: https://comptox.epa.gov/dashboard/chemical/details/DTXSID2023852
3 Arsenic disulfide: https://comptox.epa.gov/dashboard/chemical/details/DTXSID8058291
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Chlorine is listed with an incorrect CAS number of 75-00-3 on the 116.4 list. The correct CAS
number should be 7782-50-5 according to Comptox.4
Chromic acid is listed with an incorrect CAS number of 11115-74-5 on the 116.4 list. The
correct CAS number should be 7738-94-5 according to Comptox.5
Cupric oxalate is listed with an incorrect CAS number of 5893-66-3 on the 116.4 list. The
correct CAS number should be 814-91-5 according to Comptox.6
Dinitrophenol is listed with an incorrect CAS number of 51-28-5 on the 116.4 list. The correct
CAS number should be 25550-58-7 according to Comptox.7
(2,4-) dinitrophenol is missing its CAS number on the 116.4 list. The correct CAS number
should be 51-28-5 according to Comptox.8
Mercaptodimethur is listed with an incorrect CAS number of 203-65-7 on thell6.4 list. The
correct CAS number should be 2032-65-7 according to Comptox.9
Sulfur monochloride is listed with an incorrect CAS number of 12771-08-3 on the 116.4 list.
The correct CAS number should be 10025-67-9 according to Comptox.10
E. EPCRA Section 302 Extremely Hazardous Substances (EHSs)
The presence of EPCRA Extremely Hazardous Substances (EHSs) in quantities at or above the
Threshold Planning Quantity (TPQ) requires certain emergency planning activities to be
conducted. The EPCRA EHSs and their TPQs are listed in 40 CFR part 355, Appendix A and
Appendix B. For EPCRA section 302 EHSs, Local and Tribal Emergency Planning Committees
(LEPCs or TEPCs) must develop emergency response plans and facility owners or operators must
notify the State or Tribal Emergency Response Commission (SERC or TERC) and their LEPC or
TEPC if any of the EPCRA EHS is present at the facility or above its TPQ. Additionally, if the TPQ
is equaled or exceeded, facilities with a listed EPCRA EHS are subject to the reporting
requirements of EPCRA section 311 (provide safety data sheet or a list of covered chemicals to
the SERC or TERC, LEPC or TEPC, and local fire department) and section 312 (submit inventory
form -Tier I or Tier II). The minimum threshold for section 311-312 reporting for EPCRA EHSs is
500 pounds or the TPQ, whichever is less.
4 Chlorine: https://comptox.epa.gov/dashboard/chemical/details/DTXSID1020273
5 Chromic acid: https://comptox.epa.gov/dashboard/chemical/details/DTXSID8034455
6 Cupric oxalate: https://comptox.epa.gov/dashboard/chemical/details/DTXSID0041802
7 Dinitrophenol: https://comptox.epa.gov/dashboard/chemical/details/DTXSID40894743
8 2,4-Dinitrophenol: https://comptox.epa.gov/dashboard/chemical/details/DTXSID0020523
9 Mercaptodimethur: https://comptox.epa.gov/dashboard/chemical/details/DTXSID3032626
10 Sulfur monochloride: https://comptox.epa.gov/dashboard/chemical/details/DTXSID3042427
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TPQ. The consolidated list presents the TPQ (in pounds) for section 302 chemicals in the column
following the CAS number. For chemicals that are solids, there are two TPQs given (e.g.,
500/10,000). In these cases, the lower quantity applies for solids in powder form with particle
size less than 100 microns, or if the substance is in solution or in molten form. Otherwise, the
10,000-pound TPQ applies. If a solid EPCRA EHS is in molten form, the facility must multiply the
amount of EPCRA EHS on-site by 0.3 before comparing to the lower listed TPQ. If a solid EPCRA
EHS is in solution form, the facility must multiply amount EPCRA EHS on-site by 0.2 before
comparing to the lower listed TPQ. The reducing factors of 0.3 for molten solids and 0.2 for
solids in solution are not to be used for the 12 solid reactive chemicals are noted by footnote
"a" in Appendix A and B in 40 CFR part 355. These twelve chemicals are not listed with two
TPQs and higher threshold quantity of 10,000 pounds; they only have one TPQ.
EPCRA EHS RQ. Releases of reportable quantities (RQ) of EPCRA EHSs are subject to State or
Trial and local reporting under section 304 of EPCRA. EPA has adjusted RQs for EPCRA EHSs
without CERCLA RQs to levels equal to their TPQs. The EPCRA EHS RQ column lists these
adjusted RQs for EPCRA EHSs not listed under CERCLA and the CERCLA RQs for those EPCRA
EHSs that are CERCLA hazardous substances (see the next section for a discussion of CERCLA
RQs).
Note: Ammonia is listed as an EPCRA EHS with an RQ of 100 pounds in 40 CFR part 355
Appendices A and B and covers both anhydrous and aqueous forms, unlike under CERCLA
where aqueous ammonia is listed separately as ammonium hydroxide, with a higher RQ.
F. EPCRA Section 313 Toxic Chemicals (a.k.a., Toxics Release Inventory (TRI)
Chemicals)
Emissions, transfers, and waste management data for chemicals listed under EPCRA section
313 must be reported annually as part of the community right-to-know provisions of EPCRA
[40 CFR part 3721. These reports are also known as Toxics Release Inventory (TRI) reports.
Section 313. The notation "313" in the column for section 313 indicates that the chemical is
subject to reporting under section 313 and section 6607 of the Pollution Prevention Act under
the name listed.
In cases where a chemical is listed under section 313 with a second name in parentheses or
brackets, the second name is included on this consolidated list with an "X" in the section 313
column. An "X" in this column also may indicate that the same chemical with the same CAS
number appears on another list with a different chemical name. The "X" listed with the
chemical name "Ammonia (anhydrous)" and "Ammonia (concentration of 20% or greater)"
does not mean that the section 313 reporting for these substances are limited to those forms,
but it does include them.
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The notation "313c" is used for chemicals that are reportable as part of a TRI chemical category,
though that chemical's name and CAS number do not appear individually in the TRI chemical
list.
The notation "313i" is used for chemicals that are not specifically listed by name and CAS
number but are reportable underTRI as an isomer included under a listed CAS number.
Ammonia. The EPCRA section 313 listing for ammonia includes the following qualifier
"includes anhydrous ammonia and aqueous ammonia from water dissociable ammonium salts
and other sources; 10 percent of total aqueous ammonia is reportable under this listing." The
qualifier for ammonia means that anhydrous forms of ammonia are 100% reportable and
aqueous forms are limited to 10% of total aqueous ammonia. Therefore, when determining
threshold and releases and other waste management quantities all anhydrous ammonia is
included but only 10% of total aqueous ammonia is included. Any evaporation of ammonia
from aqueous ammonia solutions is considered anhydrous ammonia and should be included in
threshold determinations and release and other waste management calculations.
In this document ammonium salts are not specifically identified as being reportable EPCRA
section 313 chemicals. However, water dissociable ammonia salts, such as ammonium
chloride, are reportable if they are placed in water. When ammonium salts are placed in
water, reportable aqueous ammonia is manufactured. As indicated in the ammonia qualifier,
all aqueous ammonia solutions from water dissociable ammonium salts are covered by the
ammonia listing. For example, ammonium chloride is a water-dissociable ammonium salt and
reportable aqueous ammonia will be manufactured when it is placed in water.
Unlike other ammonium salts, ammonium hydroxide is specifically identified as being a
reportable EPCRA section 313 chemical. This is because the chemical ammonium hydroxide
(NH4OH) is a misnomer. It is a common name used to describe a solution of ammonia in
water (i.e., aqueous ammonia), typically a concentrated solution of 28 to 30 percent
ammonia. EPA has consistently responded to questions regarding the reportability of these
purported ammonium hydroxide solutions under the EPCRA section 313 ammonia listing by
stating that these are 28 to 30 percent solutions of ammonia in water and that the solutions
are reportable under the EPCRA section 313 ammonia listing. For a more detailed discussion,
see page 34175 of the Federal Register final rule [60 FR 34172. June 30.19951 on TRI
reporting for Ammonia; Ammonium Sulfate (solution); Ammonium Nitrate (solution); Water
Dissociable Ammonium Salts, (See
https://www.federalregister.gov/documents/1995/06/30/95-16184/ammonia-ammonium-
sulfate-solution-ammonium-nitrate-solution-water-dissociable-ammonium-saIts-toxic. (See
also EPA'sTRI Guidance for Reporting Aqueous Ammonia, EPA 745-B-19-002, revised in
February 2019 at https://guideme.epa.gov/ords/guideme ext/f?p=guideme:gd-
title:::::title:ammonia)
Stayed TRI Chemicals. There are two EPRCA section 313 chemicals that are listed in the CFR but
for which the Agency has issued an administrative stay that excludes them from reporting until
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the stays are lifted. These chemicals, identified by "313s" in the Sec. 313 table column, are
methyl mercaptan (CAS number 74-93-1), and 2, 2-dibromo-3-nitrilopropionamide (CAS
number 10222-01-2). Check the TRI website https://www.epa.gov/toxics-release-inventory-tri-
program/tri-listed-chemicals for updated regulatory information.
New TRI Chemicals. National Defense Authorization Act Additions. Section 7321 of the National
Defense Authorization Act for Fiscal Year 2020 [P.L. 116-921 (NDAA) added certain Per- and
Polyfluoroalkyl Substances (PFAS) to the TRI list. Among these added chemicals are chemicals
that met two criteria: (1) they were subject to a significant new use rule at either 40 CFR
721.9582 or 721.10536 on or before December 20, 2019; and (2) they were identified as active
in commerce on the Toxic Substances Control Act (TSCA) Inventory that was published in
February 2019. Chemicals meeting only one of the two criteria were not added to the TRI list.
The names and CAS numbers for some of the chemicals listed under 40 CFR 721.9582 and/or
40 CFR 721.10536 are subject to a claim of protection from disclosure. Under section 7321 of
the NDAA, EPA must review any such chemicals before the chemicals are added to the TRI list
[NDAA Section 7321(e)]. Therefore, the chemicals that are subject to a claim of protection from
disclosure will not be added to the EPCRA Section 313 toxic chemical list until EPA completes
the process section 7321(e) of the NDAA provides.
Via the considerations described above, EPA identified 170 chemicals. Additionally, the NDAA
specifically identified fourteen PFAS for addition to the TRI list. Twelve of these fourteen
chemicals were already among the chemicals described above; with the addition of the other
two that were not, there were a total of 172 PFAS subject to the NDAA and added to the TRI list
as of January 1, 2020.
Under the automatic listing provisions of the 2020 NDAA, PFAS have been automatically added
to the TRI chemical list in each year since 2020. For lists of PFAS additions to the TRI chemical
list by the NDAA, please see https://www.epa.gov/toxics-release-inventory-tri-
program/addition-certain-pfas-tri-national-defense-authorization-act.
All PFAS on the TRI chemical list pursuant to the NDAA are designated as chemicals of special
concern. Certain burden reduction measures, such as the de minimis exemption and the Form A
Certification Statement, are not available to chemicals of special concern.
Petition Additions. In response to a petition filed by the Toxics Use Reduction Institute, EPA
added 12 chemicals to the EPCRA section 313 list [87 FR 73475. November 30. 20221. These 12
chemicals are reportable beginning with the 2023 reporting year (reports due July 1, 2024). In
addition, EPA has classified one of the chemicals as a persistent, bioaccumulative, and toxic
(PBT) chemical and designated it as a chemical of special concern with 100-pound reporting
thresholds: l,3,4,6,7,8-Hexahydro-4,6,6,7,8,8-hexamethylcyclopenta[g]-2-benzopyran, or
HHCB. The 12 chemicals are: Dibutyltin dichloride (CAS number 683-18-1); l,3-Dichloro-2-
propanol (CAS number 96-23-1); Formamide (CAS number 75-12-7); 1,3,4,6,7,8-Hexahydro-
4,6,6,7,8,8-hexamethylcyclopenta[g]-2-benzopyran (CAS number 1222-05-5); N-
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EPA 550-B-24-001
Hydroxyethylethylenediamine (CAS number 111-41-1); Nitrilotriacetic acid trisodium salt (CAS
number 5064-31-3); p-(l,l,3,3-Tetramethylbutyl)phenol (CAS number 140-66-9); 1,2,3-
Trichlorobenzene (CAS number 87-61-6); Triglycidyl isocyanurate (CAS number 2451-62-9);
Tris(2-chloroethyl) phosphate (CAS number 115-96-8); Tris(l,3-dichloro-2-propyl) phosphate
(CAS number 13674-87-8); and Tris(dimethylphenol) phosphate (CAS number 25155-23-1).
EPA finalized a rule adding a diisononyl phthalate (DINP) category to the TRI list in July 2023 [88
CFR 45089. July 14. 20231. This category is reportable beginning with the 2024 reporting year
(reports due July 1, 2025). The category includes branched alkyl di-esters of 1,2
benzenedicarboxylic acid in which alkyl ester moieties contain a total of nine carbons. This
category includes but is not limited to the chemicals covered by the CAS numbers and names
listed here: Diisononyl phthalate (CAS number 28553-12-0); Branched dinonyl phthalate (CAS
number 71549-78-5); Bis(3,5,5-trimethylhexyl) phthalate (CAS number 14103-61-8); Di(C8-10,
C9 rich) branched alkyl phthalates (CAS number 68515-48-0): Bis(7-methyloctyl) phthalate (CAS
number 20548-62-3); Bis(3-ethylheptan-2-yl) benzene-l,2-dicarboxylate (CAS number 111983-
10-9).
G. RCRA Hazardous Wastes
The consolidated list includes specific chemicals from the RCRA P and U lists only
[40 CFR 261.331. This listing is provided as an indicator that companies may already have data
on a specific chemical that may be useful for EPCRA reporting. It is not intended to be a
comprehensive list of RCRA P and U chemicals. RCRA hazardous wastes consisting of waste
streams on the F and K lists, and wastes exhibiting the characteristics of ignitability, corrosivity,
reactivity, and toxicity, are provided in Appendix C in this document. This list also includes K181
hazardous waste with a statutory one-pound RQ (indicated by an asterisk following the RQ).
The descriptions of the F and K waste streams have been abbreviated; see 40 CFR part 302.
Table 302.4. or 40 CFR part 261 for complete descriptions.
RCRA Code. The letter-and-digit code in the RCRA Code column is the chemical's RCRA
hazardous waste code.
xi
April 2025
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U.S. EPA: List of Lists
Summary of Codes
EPA 550-B-24-001
SUMMARY OF CODES
Codes in Name column
1 Acetyl chloride is listed with an incorrect CAS number of 79-36-7 on the 116.4 list. The
correct CAS number should be 75-36-5 according to Comptox.
2 Arsenic disulfide is listed with an incorrect CAS number of 1303-32-8 on the 116.4 list.
The correct CAS number should be 12044-79-0 according to Comptox.
3 Chlorine is listed with an incorrect CAS number of 75-00-3 on the 116.4 list. The
correct CAS number should be 7782-50-5 according to Comptox.
4 Chromic acid is listed with an incorrect CAS number of 11115-74-5 on the 116.4 list.
The correct CAS number should be 7738-94-5 according to Comptox.
5 Cupric oxalate is listed with an incorrect CAS number of 5893-66-3 on the 116.4 list.
The correct CAS number should be 814-91-5 according to Comptox.
6 Dinitrophenol is listed with an incorrect CAS number of 51-28-5 on the 116.4 list. The
correct CAS number should be 25550-58-7 according to Comptox.
7 (2,4-) dinitrophenol is missing its CAS number on the 116.4 list. The correct CAS
number should be 51-28-5 according to Comptox.
8 Mercaptodimethur is listed with an incorrect CAS number of 203-65-7 on thell6.4
list. The correct CAS number should be 2032-65-7 according to Comptox.
9 Sulfur monochloride is listed with an incorrect CAS number of 12771-08-3 on the
CERCLA 302.4 and CWA 116.4 list. The correct CAS number should be 10025-67-9
according to Comptox. However, the List of Lists has sulfur monochloride with both
CAS numbers because CAS number 12771-08-3 has not been corrected on the CERCLA
list.
++ No reporting of releases of this CERCLA hazardous substance is required under
CERCLA if the diameter of the pieces of the solid metal released is larger than
100 micrometers (0.004 inches).
+++ The RQ for asbestos is limited to friable forms only.
a Benzene was already a CERCLA hazardous substance prior to the CAA Amendments of
1990 and received an adjusted 10-pound RQ based on potential carcinogenicity in an
August 14, 1989, final rule (54 FR 33418). The CAA Amendments specify that
"benzene (including benzene from gasoline)" is a hazardous air pollutant and, thus, a
CERCLA hazardous substance.
xii
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U.S. EPA: List of Lists
Summary of Codes
EPA 550-B-24-001
b The CAA Amendments of 1990 list DDE (CAS number 3547-04-4) as a CAA hazardous
air pollutant (HAP). The CAS number, 3547-04-4, is for the chemical, p,
p'-dichlorodiphenylethane. DDE or p, p'- dichlorodiphenyldichloroethylene, CAS
number 72-55-9, is already listed in Table 302.4 with a final RQ of 1 pound. The
substance identified by the CAS number 3547-04-4 has been evaluated and listed as
DDE to be consistent with the CAA section 112 listing, as amended.
c Includes mineral fiber emissions from facilities manufacturing or processing glass,
rock, or slag fibers (or other mineral derived fibers) of average diameter 1 micrometer
or less.
d For CERCLA hazardous substances, includes mono- and di-ethers of ethylene glycol,
diethylene glycol, and triethylene glycol R-(OCH2CH2)n-OR' where:
n = 1, 2, or 3;
R = alkyl C7 or less; or
R = phenyl or alkyl substituted phenyl;
R'= H or alkyl C7 or less; or
OR' consisting of carboxylic acid ester, sulfate, phosphate, nitrate, or
sulfonate.
Note: the phrase "mono- and di-ethers of ethylene glycol, diethylene glycol, and
triethylene glycol" is not included the TRI definition, but the defined formula is the
same for the CERCLA and TRI listing and by formula definition would cover "mono-
and di-ethers of ethylene glycol, diethylene glycol, and triethylene glycol."
e Includes organic compounds with more than one benzene ring, and which have a
boiling point greater than or equal to 100 °C.
Codes in CERCLA HS RQ column
* The Agency may adjust the statutory RQ for this RCRA hazardous substance
(K181 waste) in a future rulemaking; until then the statutory one-pound RQ applies.
K codes wastes are listed in Appendix C.
PMN This EPCRA EHS chemical was identified from a Premanufacture Review Notice (PMN)
submitted to EPA. The submitter has claimed certain information on the submission to
be confidential, including specific chemical identity.
& Indicates that no RQ is assigned to this generic or broad class, although the class is a
CERCLA hazardous substance. See 50 Federal Register 13456 (April 4,1985).
@ Releases in amounts less than 1,000 pounds per 24 hours of nitrogen oxide or
nitrogen dioxide to the air that are the result of combustion and combustion related
activities are exempt from the notification requirements of EPCRA section 304 and
CERCLA.
§ The adjusted RQs for radionuclides may be found in Appendix B in this document.
xiii
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U.S. EPA: List of Lists
Summary of Codes
EPA 550-B-24-001
Code in CWA 311(i)(5) HS FRP TQ column
i Indicates a structural isomer to the chemical listed in CFR 117.3
Codes in Section 313 column
313 TRI listed substance, no other codes apply.
c Although not listed by name and CAS number, this chemical is reportable under one or
more of the EPCRA section 313 chemical categories.
i Although not specifically listed by name and CAS number, this chemical is an isomer
that is reportable under a listed EPCRA section 313 CAS number.
s Indicates that this chemical is currently under an administrative stay of the EPCRA
section 313 reporting requirements, therefore, no Toxics Release Inventory reports are
required until the stay is removed.
X Indicates that this is a second name for an EPCRA section 313 chemical already included
on this consolidated list. May also indicate that the same chemical with the same CAS
number appears on another list with a different chemical name.
N120 Member of EPCRA section 313 Diisocyanate category.
N125 Member of the EPCRA section 313 Diisononyl phthalates category.
N150 Member of the EPCRA section 313 Dioxin and dioxin-like compounds category.
N270 Member of the EPCRA section 313 Hexabromocyclododecane category.
N530 Member of the EPCRA section 313 Nonylphenol category.
N535 Member of the EPCRA section 313 Nonylphenol ethoxylates category.
N590 Member of the EPCRA section 313 PAC category.
Code in RCRA Waste Stream Codes column
f See 40 CFR 302.6(b)(1) for application of the mixture rule to this hazardous waste. See
Appendix C for listing of "K" code RCRA waste streams.
xiv
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US EPA: List of Lists
EPA 550-B-24-001
Consolidated List of Chemicals
(By Name)
Subject to CAA section 112(r)(7), CERCLA, CWA Section 311, and EPCRA
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Abamectin
71751-41-2
DTXSID8023892
313
Acenaphthene
83-32-9
DTXSID3021774
100
Acenaphthylene
208-96-8
DTXSID3023845
5,000
Acephate
30560-19-1
DTXSID8023846
313
Acetaldehyde
75-07-0
DTXSID5039224
10,000
1,000
1,000,000
313
U001
Acetaldehyde, trichloro-
75-87-6
DTXSID7024744
5,000
U034
Acetamide
60-35-5
DTXSID7020005
100
313
Acetamide, N-(2-aminoethyl)-, 2-[(y-io-
perf 1 uoro-C4-20-a 1 kyl)thio] derivs.,
polymers with N1 ,N1-dimethyl-1,3-
propanediamine, epichlorohydrin and
ethylenediamine, oxidized
2742694-36-4
DTXSID201343546
313
Acetamide, N-[3-(dimethylamino)propyl]-
, 2-[(y-io-pe rf I u o ro-C4-2 0-a I ky l)th i o]
derivs.
2738952-61-7
DTXSID201343510
313
Acetic acid, [(Y-w-perfluoro-C8-10-
alkyl)thio] derivs., Bu esters
3030471-22-5
SRS Entry
313
Acetic acid
64-19-7
DTXSID5024394
5,000
5,000,000
Acetic acid, (2,4-dichlorophenoxy)-
94-75-7
DTXSID0020442
100
100,000
X
U240
Acetic acid ethenyl ester
108-05-4
DTXSID3021431
15,000
5,000
5,000,000
1,000
5,000
X
Acetic acid, 2-[(Y-w-perfluoro-C4-20-
alkyl)thio] derivs., 2-hydroxypropyl
esters
2744262-09-5
DTXSID501343557
313
Acetic anhydride
108-24-7
DTXSID0024395
5,000
5,000,000
Acetone
67-64-1
DTXSID8021482
5,000
U002
Acetone cyanohydrin
75-86-5
DTXSID7025427
10
10,000
1,000
10
X
P069
Acetone thiosemicarbazide
1752-30-3
DTXSID6044480
1,000/10,000
1,000
Acetonitrile
75-05-8
DTXSID7020009
5,000
313
U003
Acetophenone
98-86-2
DTXSID6021828
5,000
313
U004
For Reference Only
1
Version: April 2025
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US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
2-Acetylaminofluorene
53-96-3
DTXSID0039227
1
313
U005
Acetyl bromide
506-96-7
DTXSID5060140
5,000
5,000,000
Acetyl chloride (1)
75-36-5
DTXSID2023852
5,000
5,000,000
U006
Acetylene
74-86-2
DTXSID6026379
10,000
1-Acetyl-2-thiourea
591-08-2
DTXSID4060446
1,000
P002
Acifluorfen, sodium salt
62476-59-9
DTXSID7023853
313
Acrolein
107-02-8
DTXSID5020023
5,000
1
1,000
500
1
313
P003
Acrylamide
79-06-1
DTXSID5020027
5,000
1,000/10,000
5,000
313
U007
Acrylic acid
79-10-7
DTXSID0039229
5,000
313
U008
Acrylonitrile
107-13-1
DTXSID5020029
20,000
100
100,000
10,000
100
313
U009
Acrylyl chloride
814-68-6
DTXSID1061150
5,000
100
100
Adipic acid
124-04-9
DTXSID7021605
5,000
5,000,000
Adiponitrile
111-69-3
DTXSID3021936
1,000
1,000
Alachlor
15972-60-8
DTXSID1022265
313
Alcohols, C8-14, y-io-perfluoro
68391-08-2
DTXSID70883049
313
U006
Alcohols, C8-16, y-io-perfluoro, reaction
products with 1,6 diisocyanatohexane,
glycidol and stearyl ale.
2728655-42-1
DTXSID801343425
313
U008
Aldicarb
116-06-3
DTXSID0039223
1
100/10,000
1
313
P070
Aldicarb sulfone
1646-88-4
DTXSID6023862
100
P203
Aldrin
309-00-2
DTXSID8020040
1
1,000
500/10,000
1
313
P004
Alkenes, C8-14 a-, 5-io-perfluoro
97659-47-7
DTXSID60882006
313
Alkyl iodides, C4-20, y-w-perfluoro
68188-12-5
DTXSID60881973
313
c/-frans-Allethrin
28434-00-6
DTXSID2039336
313
P098
Allyl alcohol
107-18-6
DTXSID8020044
15,000
100
100,000
1,000
100
313
P005
Allylamine
107-11-9
DTXSID8024440
10,000
500
500
313
Allyl chloride
107-05-1
DTXSID4039231
1,000
1,000,000
313
Aluminum (fume or dust)
7429-90-5
DTXSID3040273
313
Aluminum oxide (fibrous forms)
1344-28-1
DTXSID2041593
313
Aluminum phosphide
20859-73-8
DTXSID1023867
100
500
100
313
P006
Aluminum sulfate
10043-01-3
DTXSID2040317
5,000
5,000,000
For Reference Only
2
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US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Ametryn
834-12-8
DTXSID1023869
313
2-Aminoanthraquinone
117-79-3
DTXSID6020068
313
4-Aminoazobenzene
60-09-3
DTXSID6024460
313
4-Aminobiphenyl
92-67-1
DTXSID5020071
1
313
1-Amino-2,4-dibromoanthraquinone
81-49-2
DTXSID4039235
313
1-Amino-2-methylanthraquinone
82-28-0
DTXSID7020057
313
5-(Aminomethyl)-3-isoxazolol
2763-96-4
DTXSID5041069
1,000
500/10,000
1,000
P007
Ami no pterin
54-62-6
DTXSID3022588
500/10,000
500
4-Aminopyridine
504-24-5
DTXSID0023870
1,000
500/10,000
1,000
P008
Amiton
78-53-5
DTXSID6058184
500
500
Amiton oxalate
3734-97-2
DTXSID9041601
100/10,000
100
Amitraz
33089-61-1
DTXSID5023871
313
P089
Amitrole
61-82-5
DTXSID0020076
313
U011
Ammonia
7664-41-7
DTXSID0023872
100
100,000
500
100
Ammonia (cone 20% or greater)
7664-41-7
DTXSID0023872
20,000
See ammc
100,000
X
Ammonia (anhydrous)
7664-41-7
DTXSID0023872
10,000
100
100,000
500
100
X
Ammonia (includes anhydrous
ammonia and aqueous ammonia from
water dissociable ammonium salts and
other sources; 10 percent of total
aqueous ammonia is reportable under
this listing)
7664-41-7
DTXSID0023872
100,000
313
Ammonium perfluorodecanoate (PFDA
NH4)
3108-42-7
DTXSID60880027
313
Ammonium acetate
631-61-8
DTXSID5023873
5,000
5,000,000
Ammonium benzoate
1863-63-4
DTXSID4041602
5,000
5,000,000
Ammonium bicarbonate
1066-33-7
DTXSID5035618
5,000
5,000,000
Ammonium bichromate
7789-09-5
DTXSID70872953
10
10,000
313c
Ammonium bifluoride
1341-49-7
DTXSID9029645
100
100,000
Ammonium bisulfite
10192-30-0
DTXSID1050462
5,000
5,000,000
Ammonium carbamate
1111-78-0
DTXSID9027360
5,000
5,000,000
Ammonium carbonate
506-87-6
DTXSID5047457
5,000
5,000,000
For Reference Only
3
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US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Ammonium chloride
12125-02-9
DTXSID0020078
5,000
5,000,000
Ammonium chromate
7788-98-9
DTXSID3064857
10
10,000
313c
Ammonium citrate, dibasic
3012-65-5
DTXSID5020079
5,000
5,000,000
Ammonium fluoborate
13826-83-0
DTXSID8065660
5,000
5,000,000
Ammonium fluoride
12125-01-8
DTXSID6050463
100
100,000
Ammonium hydroxide
1336-21-6
DTXSID4020080
1,000
1,000,000
X
Ammonium oxalate
5972-73-6
DTXSID2064072
5,000
5,000,000
Ammonium oxalate
6009-70-7
DTXSID90975516
5,000
5,000,000
Ammonium oxalate
14258-49-2
DTXSID50931532
5,000
5,000,000
Ammonium perfluorobutanoate
10495-86-0
DTXSID10893420
313
Ammonium perfluorohexanoate
21615-47-4
DTXSID90880232
313
Ammonium perfluorooctanoate
3825-26-1
DTXSID8037708
313
Ammonium picrate
131-74-8
DTXSID50872815
10
P009
Ammonium silicofluoride
16919-19-0
DTXSID6047076
1,000
1,000,000
Ammonium sulfamate
7773-06-0
DTXSID5023875
5,000
5,000,000
Ammonium sulfide
12135-76-1
DTXSID60893218
100
100,000
Ammonium sulfite
10196-04-0
DTXSID2064991
5,000
5,000,000
Ammonium tartrate
3164-29-2
DTXSID50889463
5,000
5,000,000
Ammonium tartrate
14307-43-8
DTXSID90931738
5,000
5,000,000
Ammonium thiocyanate
1762-95-4
DTXSID3029653
5,000
5,000,000
Ammonium vanadate
7803-55-6
DTXSID1052533
1,000
313c
P119
Amphetamine
300-62-9
DTXSID4022600
1,000
1,000
Amyl acetate
628-63-7
DTXSID1027263
5,000
5,000,000
iso-Amyl acetate
123-92-2
DTXSID9025453
5000
5,000,000i
sec-Amyl acetate
626-38-0
DTXSID8052306
5000
5,000,000i
tert-Amyl acetate
625-16-1
DTXSID80978091
5000
5,000,000i
Anilazine
101-05-3
DTXSID9020089
313
Aniline
62-53-3
DTXSID8020090
5,000
5,000,000
1,000
5,000
313
U012
Aniline, 2,4,6-trimethyl-
88-05-1
DTXSID5043847
500
500
o-Anisidine
90-04-0
DTXSID5023877
100
313
p-Anisidine
104-94-9
DTXSID7024532
313
For Reference Only
4
Version: April 2025
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US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
o-Anisidine hydrochloride
134-29-2
DTXSID8020092
313
Anthracene
120-12-7
DTXSID0023878
5,000
313
Ant
mony ||
7440-36-0
DTXSID5023879
5,000
313
Ant
mony Compounds
N010
DTXSID501336398
&
Ant
mony pentachloride
7647-18-9
DTXSID30893043
1,000
1,000,000
Ant
mony pentafluoride
7783-70-2
DTXSID00893075
500
500
313c
Ant
mony potassium tartrate
28300-74-5
DTXSID3039240
100
100,000
313c
Ant
mony tribromide
7789-61-9
DTXSID6064870
1,000
1,000,000
313c
Ant
mony trichloride
10025-91-9
DTXSID4044161
1,000
1,000,000
313c
Ant
mony trifluoride
7783-56-4
DTXSID1064827
1,000
1,000,000
313c
Ant
mony trioxide
1309-64-4
DTXSID4023880
1,000
1,000,000
313c
Ant
mycin A
1397-94-0
DTXSID9032325
1,000/10,000
1,000
ANTU
86-88-4
DTXSID8020919
100
500/10,000
100
P072
Aroclor 1016
12674-11-2
DTXSID9023883
1
Aroclor 1221
11104-28-2
DTXSID3093945
1
Aroclor 1232
11141-16-5
DTXSID3093949
1
Aroclor 1242
53469-21-9
DTXSID3040223
1
Aroclor 1248
12672-29-6
DTXSID4023884
1
Aroclor 1254
11097-69-1
DTXSID5020100
1
Aroclor 1260
11096-82-5
DTXSID0020101
1
Arsenic ||
7440-38-2
DTXSID4023886
1
313
Arsenic acid
7778-39-4
DTXSID1034341
1
313c
P010
Arsenic Compounds
N020
DTXSID201336399
&
313
Arsenic disulfide (2)
12044-79-0
DTXSID8058291
1
1,000
313c
Arsenic pentoxide
1303-28-2
DTXSID1034343
1
1,000
100/10,000
1
313c
P011
Arsenic trioxide
1327-53-3
DTXSID0020103
1
1,000
100/10,000
1
313c
P012
Arsenic trisulfide
1303-33-9
DTXSID50274153
1
1,000
313c
Arsenous oxide
1327-53-3
DTXSID0020103
1
1,000
100/10,000
1
313c
P012
Arsenous trichloride
7784-34-1
DTXSID3042556
15,000
1
1,000
500
1
313c
Arsine
7784-42-1
DTXSID3023760
1,000
100
100
Asbestos (friable) t||
1332-21-4
DTXSID4023888
1
313
For Reference Only
5
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Atrazine
1912-24-9
DTXSID9020112
313
Auramine
492-80-8
DTXSID7043821
100
X
U014
Azaserine
115-02-6
DTXSID9020118
1
U015
Azinphos-ethyl
2642-71-9
DTXSID5037498
100/10,000
100
Azinphos-methyl
86-50-0
DTXSID3020122
1
1,000
10/10,000
1
Aziridine
151-56-4
DTXSID8020599
10,000
1
500
1
X
P054
Aziridine, 2-methyl
75-55-8
DTXSID8024286
10,000
1
10,000
1
X
P067
Barban
101-27-9
DTXSID3041617
10
U280
Barium
7440-39-3
DTXSID8023894
313
Barium Compounds
N040
DTXSID601336408
313
Barium cyanide
542-62-1
DTXSID3023895
10
10,000
313c
P013
Bendiocarb
22781-23-3
DTXSID9032327
100
313
U278
Bendiocarb phenol
22961-82-6
DTXSID3066845
1,000
U364
Benezeneamine, 2,6-dinitro-A/,A/-
dipropyl-4-(trifluoromethyl)-
1582-09-8
DTXSID4021395
10
X
Benfluralin
1861-40-1
DTXSID3023899
313
Benomyl
17804-35-2
DTXSID5023900
10
313
U271
Benz[c]acridine
225-51-4
DTXSID9059759
100
U016
Benzal chloride
98-87-3
DTXSID6025014
5,000
500
5,000
313
U017
Benzamide
55-21-0
DTXSID0021709
313
Benzamide, 3,5-dichloro-A/-(1,1-
dimethyl-2-propynyl
23950-58-5
DTXSID2020420
5,000
X
U192
Benz[a]anthracene
56-55-3
DTXSID5023902
10
313-N590
U018
Benzenamine, 3-(trifluoromethyl)-
98-16-8
DTXSID9024512
500
500
Benzene a
71-43-2
DTXSID3039242
10
10,000
313
U019
Benzeneacetic acid, 4-chloro-.alpha.-(4-
chlorophenyl)-.alpha.-hydroxy-, ethyl
ester
510-15-6
DTXSID9020299
10
X
U038
Benzenearsonic acid
98-05-5
DTXSID6059158
10/10,000
10
Benzene, 1 -(chloromethyl)-4-nitro-
100-14-1
DTXSID4025745
500/10,000
500
For Reference Only
6
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
CAS Number/
CAA
CWA
EPCRA
313 Category
112(r)(7)
CERCLA
311 (j)(5)
EPCRA 302
304 EHS
EPCRA
RCRA
Name
Codes
Comptox
TQ
HS RQ
HS TQ
EHS TPQ
RQ
313 TRI
Code
1,4-Benzenedicarboxylic acid, dimethyl
ester, reaction products with bis(2-
hydroxyethyl) terephthalate, ethylene
glycol, a-fluoro-w-(2-
hydroxyethyl)poly(difluoromethylene),
hexakis(methoxymethyl)melamine and
polyethylene glycol
68515-62-8
DTXSID30882654
313
Benzene, 2,4-diisocyanato-1 -methyl-
584-84-9
DTXSID7026156
10,000
100
500
100
X
Benzene, 1,3-diisocyanato-2-methyl-
91-08-7
DTXSID2026157
10,000
100
100
100
X
Benzene, 1,3-diisocyanatomethyl-
26471-62-5
DTXSID0024341
10,000
100
X
U223
Benzene, m -dimethyl-
108-38-3
DTXSID6026298
1,000
100,000i
X
U239
Benzene, o-dimethyl-
95-47-6
DTXSID3021807
1,000
100,000i
X
U239
Benzene, p-dimethyl-
106-42-3
DTXSID2021868
100
100,000i
X
U239
Benzeneethanamine, alpha,alpha-
dimethyl-
122-09-8
DTXSID9023461
5,000
P046
Benzenemethanol, 4-chloro-.alpha.-4-
chlorophenyl)-.alpha.-(trichloromethyl)-
115-32-2
DTXSID4020450
10
10,000
X
Benzenesulfonyl chloride
98-09-9
DTXSID1026619
100
U020
Benzenethiol
108-98-5
DTXSID7026811
100
500
100
P014
Benzene, 1,1 '-(2,2,2-
trichloroethylidene)bis [4-methoxy-
72-43-5
DTXSID9020827
1
1,000
X
U247
Benzidine
92-87-5
DTXSID2020137
1
313
U021
Benzimidazole, 4,5-dichloro-2-
(trifluoromethyl)-
3615-21-2
DTXSID0041773
500/10,000
500
Benzo[b]fluoranthene
205-99-2
DTXSID0023907
1
313-N590
Benzo[j]fluoranthene
205-82-3
DTXSID8052691
313-N590
Benzo[k]fluoranthene
207-08-9
DTXSID0023909
5,000
313-N590
Benzo[j,k]fluorene
206-44-0
DTXSID3024104
313-N590
Benzoic acid
65-85-0
DTXSID6020143
5,000
5,000,000
Benzoic acid, 3-amino-2,5-dichloro-
133-90-4
DTXSID2020262
100
X
Benzoic trichloride
98-07-7
DTXSID1020148
10
100
10
313
U023
Benzonitrile
100-47-0
DTXSID7021491
5,000
5,000,000
Benzo[rst]pentaphene
189-55-9
DTXSID9059751
10
313-N590
U064
For Reference Only
7
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Benzo[g,h,i]perylene
191-24-2
DTXSID5023908
5,000
313
Benzo[a]phenanthrene
218-01-9
DTXSID0022432
100
313-N590
U050
Benzo[a]pyrene
50-32-8
DTXSID2020139
1
313-N590
U022
p-Benzoquinone
106-51-4
DTXSID6020145
10
X
U197
Benzotrichloride
98-07-7
DTXSID1020148
10
100
10
X
U023
Benzoyl chloride
98-88-4
DTXSID9026631
1,000
1,000,000
313
Benzoyl peroxide
94-36-0
DTXSID6024591
313
Benzyl chloride
100-44-7
DTXSID0020153
100
100,000
500
100
313
P028
Benzyl cyanide
140-29-4
DTXSID2021492
500
500
Beryllium ||
7440-41-7
DTXSID4023913
10
313
P015
Beryllium chloride
7787-47-5
DTXSID10858756
1
1,000
313c
Beryllium Compounds
N050
DTXSID101336415
&
313
Beryllium fluoride
7787-49-7
DTXSID50873983
1
1,000
313c
Beryllium nitrate
7787-55-5
DTXSID40999065
1
1,000
313c
Beryllium nitrate
13597-99-4
DTXSID6065555
1
1,000
313c
Betaines, dimethyl(.gamma.-.omega.-
perfluoro-.gamma.-hydro-C8-18-alkyl)
2816091-53-7
DTXSID101353213
313
alpha-BHC
319-84-6
DTXSID2020684
10
X
beta-BHC
319-85-7
DTXSID7020685
1
delta-BHC
319-86-8
DTXSID5024134
1
Bicyclo[2.2.1]heptane-2-carbonitrile, 5-
chloro-6-
((((methylamino)carbonyl)oxy)imino)-,(1-
alpha,2-beta,4-alpha,5-alpha,6E))-
15271-41-7
DTXSID3040304
500/10,000
500
Bifenthrin
82657-04-3
DTXSID9020160
313
2,2'-Bioxirane
1464-53-5
DTXSID0041307
10
500
10
X
U085
Biphenyl
92-52-4
DTXSID4020161
100
313
2,2-Bis(bromomethyl)-1,3-propanediol
3296-90-0
DTXSID9020164
313
Bis(tributyltin) oxide
56-35-9
DTXSID9020166
313
Bis(2-chloroethoxy) methane
111-91-1
DTXSID4023917
1,000
313
U024
Bis(2-chloroethyl) ether
111-44-4
DTXSID9020168
10
10,000
10
313
U025
Bis(chloromethyl) ether
542-88-1
DTXSID8020173
1,000
10
100
10
313
P016
For Reference Only
8
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Bis(2-chloro-1-methylethyl)ether
108-60-1
DTXSID4020167
1,000
313
U027
Bis(chloromethyl) ketone
534-07-6
DTXSID2021577
10/10,000
10
Bis(3-ethylheptan-2-yl) benzene-1,2-
dicarboxylate
111983-10-9
DTXSID00562057
313-N125
Bis(2-ethylhexyl)phthalate
117-81-7
DTXSID5020607
100
X
U028
1,3-Bis(methylisocyanate)cyclohexane
38661-72-2
DTXSID6044933
313-N120
1,4-Bis(methylisocyanate)cyclohexane
10347-54-3
DTXSID2065046
313-N120
Bis(3,5,5-trimethylhexyl) phthalate
14103-61-8
DTXSID0057889
313-N125
Bitoscanate
4044-65-9
DTXSID3046532
500/10,000
500
Bis(7-methyloctyl) phthalate
20548-62-3
DTXSID60860420
313-N125
Borane, trichloro-
10294-34-5
DTXSID2041676
5,000
500
500
X
Borane, trifluoro-
7637-07-2
DTXSID7041677
5,000
500
500
X
Boron trichloride
10294-34-5
DTXSID2041676
5,000
500
500
313
Boron trifluoride
7637-07-2
DTXSID7041677
5,000
500
500
313
Boron trifluoride compound with methyl
ether (1:1)
353-42-4
DTXSID60893071
15,000
1,000
1,000
Boron, trifluoro[oxybis[methane]]-, (T-4)-
353-42-4
DTXSID60893071
15,000
1,000
1,000
Di(C8-10, C9 rich) branched alkyl
phthalates
68515-48-0
DTXSID5028665
313-N125
Branched dinonyl phthalate
71549-78-5
DTXSID401024439
313-N125
Bromacil
314-40-9
DTXSID4022020
313
Bromacil, lithium salt
53404-19-6
DTXSID9034284
313
Bromadiolone
28772-56-7
DTXSID9032589
100/10,000
100
Bromine
7726-95-6
DTXSID1035238
10,000
500
500
313
Bromoacetone
598-31-2
DTXSID6060507
1,000
P017
1 -Bromo-1 -(bromomethyl)-l ,3-
propanedicarbonitrile
35691-65-7
DTXSID3024944
313
Bromochlorodifluoromethane
353-59-3
DTXSID0027147
313
Bromoform
75-25-2
DTXSID1021374
100
313
U225
Bromomethane
74-83-9
DTXSID8020832
1,000
1,000
1,000
313
U029
4-Bromophenyl phenyl ether
101-55-3
DTXSID8023927
100
U030
1-Bromopropane
106-94-5
DTXSID6021874
1
313
For Reference Only
9
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Bromotrifluoroethylene
598-73-2
DTXSID0060513
10,000
Bromotrifluoromethane
75-63-8
DTXSID5026415
313
Bromoxynil
1689-84-5
DTXSID3022162
313
Bromoxynil octanoate
1689-99-2
DTXSID7023932
313
Brucine
357-57-3
DTXSID2024662
100
313
P018
1,3-Butadiene
106-99-0
DTXSID3020203
10,000
10
313
1,3-Butadiene, 2-methyl-
78-79-5
DTXSID2020761
10,000
100
100,000
Butane
106-97-8
DTXSID7024665
10,000
Butane, 2-methyl-
78-78-4
DTXSID8025468
10,000
Butanoic acid, 4-[[3-
(d i met hy la mi n o) pro py I] a mi n o] -4-oxo-,
2(or 3)-[(y-to-perfIuoro-C6-20-aIkyl)thio]
derivs.
68187-25-7
DTXSID10882990
313
2-Butenal
4170-30-3
DTXSID8024864
20,000
100
100,000
1,000
100
X
U053
2-Butenal, (e)-
123-73-9
DTXSID6020351
20,000
100
1,000
100
U053
Butene
25167-67-3
DTXSID0027850
10,000
1-Butene
106-98-9
DTXSID1026746
10,000
2-Butene
107-01-7
DTXSID1026748
10,000
2-Butene-cis
590-18-1
DTXSID0027224
10,000
2-Butene, 1,4-dichloro-
764-41-0
DTXSID9027310
1
X
U074
2-Butene, (E)
624-64-6
DTXSID7027255
10,000
2-Butene-trans
624-64-6
DTXSID7027255
10,000
1-Buten-3-yne
689-97-4
DTXSID4029199
10,000
Butyl acetate
123-86-4
DTXSID3021982
5,000
5,000,000
iso-Butyl acetate
110-19-0
DTXSID5026837
5,000
5,000,000i
sec-Butyl acetate
105-46-4
DTXSID0047612
5,000
5,000,000i
tert-Butyl acetate
540-88-5
DTXSID1022055
5,000
5,000,000i
Butyl acrylate
141-32-2
DTXSID6024676
313
n -Butyl alcohol
71-36-3
DTXSID1021740
5,000
313
U031
sec-Butyl alcohol
78-92-2
DTXSID9021762
313
tert-Butyl alcohol
75-65-0
DTXSID8020204
313
Butylamine
109-73-9
DTXSID1021904
1,000
1,000,000
For Reference Only
10
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
iso-Butylamine
78-81-9
DTXSID9025459
1,000
1,000,000i
sec-Butylamine
513-49-5
DTXSID00883416
1,000
1,000,000i
sec-Butylamine
13952-84-6
DTXSID4022284
1,000
1,000,000i
tert-Butylamine
75-64-9
DTXSID5024681
1,000
1,000,000i
Butyl benzyl phthalate
85-68-7
DTXSID3020205
100
1,2-Butylene oxide
106-88-7
DTXSID6020569
100
313
2-
[Butyl[(heptadecafluorooctyl)sulfonyl]am
ino]ethyl acrylate
383-07-3
DTXSID40861915
313
n -Butyl phthalate
84-74-2
DTXSID2021781
10
10,000
X
U069
1-Butyne
107-00-6
DTXSID4029141
10,000
Butyraldehyde
123-72-8
DTXSID8021513
313
Butyric acid
107-92-6
DTXSID8021515
5,000
5,000,000
iso-Butyric acid
79-31-2
DTXSID4021636
5,000
5,000,000i
Cacodylic acid
75-60-5
DTXSID7020508
1
U136
Cadmium ||
7440-43-9
DTXSID1023940
10
313
Cadmium acetate
543-90-8
DTXSID1020225
10
10,000
313c
Cadmium bromide
7789-42-6
DTXSID30895027
10
10,000
313c
Cadmium chloride
10108-64-2
DTXSID6020226
10
10,000
313c
Cadmium Compounds
N078
DTXSID801336416
&
Cadmium oxide
1306-19-0
DTXSID0024715
100/10,000
100
313c
Cadmium stearate
2223-93-0
DTXSID30890557
1,000/10,000
1,000
313c
Calcium arsenate
7778-44-1
DTXSID6058182
1
1,000
500/10,000
1
313c
Calcium arsenite
52740-16-6
DTXSID20904950
10
313
U219
Calcium carbide
75-20-7
DTXSID4026399
10
10,000
Calcium chromate
13765-19-0
DTXSID0024717
10
10,000
313c
U032
Calcium cyanamide
156-62-7
DTXSID6020353
1,000
313
Calcium cyanide
592-01-8
DTXSID6023941
10
10,000
313c
P021
Calcium dodecylbenzenesulfonate
26264-06-2
DTXSID1027891
1,000
1,000,000
Calcium hypochlorite
7778-54-3
DTXSID1029700
10
10,000
Camphechlor
8001-35-2
DTXSID7021368
1
1,000
500/10,000
1
X
P123
Camphene, octachloro-
8001-35-2
DTXSID7021368
1
1,000
500/10,000
1
X
P123
For Reference Only
11
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Cantharidin
56-25-7
DTXSID7041752
100/10,000
100
Captan
133-06-2
DTXSID9020243
10
10,000
313
Carbachol chloride
51-83-2
DTXSID9022730
500/10,000
500
Carbamic acid, ethyl ester
51-79-6
DTXSID9021427
100
X
U238
Carbamic acid, methyl-, 0-(((2,4-
dimethyl-1,3-dithiolan-2-
yl)methylene)amino)-
26419-73-8
DTXSID3042475
100
100/10,000
100
P185
Carbamothioic acid, bis(1-methylethyl)-
S-(2,3-dichloro-2-propenyl)ester
2303-16-4
DTXSID2020391
100
X
U062
Carbamothioic acid, dipropyl-, S-
(phenylmethyl) ester
52888-80-9
DTXSID3058119
5,000
U387
Carbaryl
63-25-2
DTXSID9020247
100
100,000
313
U279
Carbendazim
10605-21-7
DTXSID4024729
10
U372
Carbofuran
1563-66-2
DTXSID9020249
10
10,000
10/10,000
10
313
P127
Carbofuran phenol
1563-38-8
DTXSID2027414
10
U367
Carbon disulfide
75-15-0
DTXSID6023947
20,000
100
100,000
10,000
100
313
P022
Carbonic difluoride
353-50-4
DTXSID7059858
1,000
U033
Carbonic dichloride
75-44-5
DTXSID0024260
500
10
10,000
10
10
X
P095
Carbonochloridic acid, methylester
79-22-1
DTXSID0024185
5,000
1,000
500
1,000
X
U156
Carbonochloridic acid, 1-methylethyl
ester
108-23-6
DTXSID7026786
15,000
1,000
1,000
Carbonochloridic acid, propylester
109-61-5
DTXSID3042342
15,000
500
500
Carbon oxide sulfide (COS)
463-58-1
DTXSID6023949
10,000
100
X
Carbon tetrachloride
56-23-5
DTXSID8020250
10
10,000
313
U211
Carbonyl sulfide
463-58-1
DTXSID6023949
10,000
100
313
Carbophenothion
786-19-6
DTXSID7022120
500
500
Carbosulfan
55285-14-8
DTXSID5023950
1,000
P189
Carboxin
5234-68-4
DTXSID0023951
313
Catechol
120-80-9
DTXSID3020257
100
313
CFC-11
75-69-4
DTXSID5021384
5,000
X
U121
CFC-12
75-71-8
DTXSID6020436
5,000
X
U075
CFC-114
76-14-2
DTXSID8026434
X
For Reference Only
12
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
CFC-115
76-15-3
DTXSID3026435
X
CFC-13
75-72-9
DTXSID4052500
X
Chinomethionat
2439-01-2
DTXSID2032342
313
Chloramben
133-90-4
DTXSID2020262
100
313
Chlorambucil
305-03-3
DTXSID7020263
10
U035
Chlordane
57-74-9
DTXSID7020267
1
1,000
1,000
1
313
U036
Chlordane, alpha isomer
5103-71-9
DTXSID6038326
1
1,000
1
313
U036
Chlordane, gamma isomer
5103-74-2
DTXSID4038346
1
1,000
1
313
U036
Chlordane (Technical Mixture and
Metabolites)
57-74-9
DTXSID7020267
1
1,000
U036
Chlorendic acid
115-28-6
DTXSID2020268
313
Chlorfenvinfos
470-90-6
DTXSID7034250
500
500
Chlorimuron-ethyl
90982-32-4
DTXSID0023955
313
Chlorinated Benzenes
N.A.
DTXSID201034315
&
Chlorinated Ethanes
N.A.
DTXSID3028479
&
Chlorinated Naphthalene
N.A.
DTXSID60103485
&
Chlorinated Phenols
N084
DTXSID201336737
&
313
Chlorine (3)
7782-50-5
DTXSID1020273
2,500
10
10,000
100
10
313
Chlorine dioxide
10049-04-4
DTXSID5023958
1,000
313
Chlorine monoxide
7791-21-1
DTXSID50893909
10,000
Chlorine oxide
7791-21-1
DTXSID50893909
10,000
Chlorine oxide (CI02)
10049-04-4
DTXSID5023958
1,000
X
Chlormephos
24934-91-6
DTXSID1037511
500
500
Chlormequat chloride
999-81-5
DTXSID6020303
100/10,000
100
Chlornaphazine
494-03-1
DTXSID3060087
100
U026
Chloroacetaldehyde
107-20-0
DTXSID4020292
1,000
P023
Chloroacetic acid
79-11-8
DTXSID4020901
100
100/10,000
100
313
2-Chloroacetophenone
532-27-4
DTXSID9020293
100
313
Chloroalkyl Ethers
N.A.
&
1 -(3-Chloroallyl)-3,5,7-triaza-1 -
azoniaadamantane chloride
4080-31-3
DTXSID5024760
313
p-Chloroaniline
106-47-8
DTXSID9020295
1,000
313
P024
For Reference Only
13
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
CAS Number/
CAA
CWA
EPCRA
313 Category
112(r)(7)
CERCLA
311 (j)(5)
EPCRA 302
304 EHS
EPCRA
RCRA
Name
Codes
Comptox
TQ
HS RQ
HS TQ
EHS TPQ
RQ
313 TRI
Code
Chlorobenzene
108-90-7
DTXSID4020298
100
100,000
313
U037
Chlorobenzilate
510-15-6
DTXSID9020299
10
313
U038
2-Chloro-A/-(2-chloroethyl)-A/-
methylethanamine
51-75-2
DTXSID2020975
10
10
X
p-Chloro-m-cresol
59-50-7
DTXSID4021717
5,000
U039
2,4-D chlorocrotyl ester
2971-38-2
DTXSID6041345
100
100,000
313
Chlorodibromomethane
124-48-1
DTXSID1020300
100
1-Chloro-1,1-difluoroethane
75-68-3
DTXSID9023960
313
Chlorodifluoro methane
75-45-6
DTXSID6020301
313
Chloroethane
75-00-3
DTXSID1020302
10,000
100
313
Chloroethanol
107-07-3
DTXSID1021877
500
500
Chloroethyl chloroformate
627-11-2
DTXSID2060832
1,000
1,000
2-Chloroethyl vinyl ether
110-75-8
DTXSID0051570
1,000
U042
Chloroform
67-66-3
DTXSID1020306
20,000
10
10,000
10,000
10
313
U044
Chloromethane
74-87-3
DTXSID0021541
10,000
100
313
U045
Chloromethyl ether
542-88-1
DTXSID8020173
1,000
10
100
10
X
P016
Chloromethyl methyl ether
107-30-2
DTXSID6020307
5,000
10
100
10
313
U046
3-Chloro-2-methyl-1 -propene
563-47-3
DTXSID1020279
313
2-Chloronaphthalene
91-58-7
DTXSID8023971
5,000
U047
Chlorophacinone
3691-35-8
DTXSID2032348
100/10,000
100
2-Chlorophenol
95-57-8
DTXSID5021544
100
U048
Chlorophenols
N084
DTXSID201336737
&
X
U069
p-Chlorophenyl isocyanate
104-12-1
DTXSID7040732
313
4-Chlorophenyl phenyl ether
7005-72-3
DTXSID2052447
5,000
Chloropicrin
76-06-2
DTXSID0020315
313
Chloroprene
126-99-8
DTXSID5020316
100
313
3-Chloropropionitrile
542-76-7
DTXSID4030336
1,000
1,000
1,000
313
P027
1-Chloropropylene
590-21-6
DTXSID5020318
10,000
2-Chloropropylene
557-98-2
DTXSID4040262
10,000
Chlorosulfonic acid
7790-94-5
DTXSID1029706
1,000
1,000,000
Chlorotetrafluoroethane
63938-10-3
DTXSID8051465
313
For Reference Only
14
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
1-Chloro-1,1,2,2-tetrafluoroethane
354-25-6
DTXSID1042023
313
2-Chloro-1,1,1,2-tetrafluoroethane
2837-89-0
DTXSID7029245
313
Chlorothalonil
1897-45-6
DTXSID0020319
313
p-Chloro-o-toluidine
95-69-2
DTXSID1041508
313
4-Chloro-o-toluidine, hydrochloride
3165-93-3
DTXSID0020288
100
U049
2-Chloro-1,1,1-trifluoroethane
75-88-7
DTXSID5020289
313
Chlorotrifluoromethane
75-72-9
DTXSID4052500
313
3-Chloro-1,1,1-trifluoropropane
460-35-5
DTXSID5042033
313
Chloroxuron
1982-47-4
DTXSID7040287
500/10,000
500
Chlorpyrifos
2921-88-2
DTXSID4020458
1
1,000
Chlorpyrifos-methyl
5598-13-0
DTXSID6032352
313
Chlorsulfuron
64902-72-3
DTXSID7023980
313
Chlorthiophos
21923-23-9
DTXSID9041786
500
500
Chromic acetate
1066-30-4
DTXSID4020327
1,000
1,000,000
313c
Chromic acid (4)
7738-94-5
DTXSID8034455
10
10,000
313c
Chromic chloride
10025-73-7
DTXSID20858722
1/10,000
1
313c
Chromic sulfate
10101-53-8
DTXSID20890642
1,000
1,000,000
313c
Chromium ||
7440-47-3
DTXSID3031022
5,000
313
Chromium Compounds
N090
DTXSID101336427
&
313
Chromium(lll) perfluorooctanoate
68141-02-6
DTXSID00880581
313
Chromous chloride
10049-05-5
DTXSID20905548
1,000
1,000,000
313c
Chrysene
218-01-9
DTXSID0022432
100
X
U050
C.I. Acid Green 3
4680-78-8
DTXSID3020671
313
C.I. Acid Red 114
6459-94-5
DTXSID8021224
313
C.I. Basic Green 4
569-64-2
DTXSID1025512
313
C.I. Basic Red 1
989-38-8
DTXSID1021243
313
C.I. Direct Black 38
1937-37-7
DTXSID7020184
313
C.I. Direct Blue 218
28407-37-6
DTXSID2020187
313
C.I. Direct Blue 6
2602-46-2
DTXSID2020185
313
C.I. Direct Brown 95
16071-86-6
DTXSID3020201
313
C.I. Disperse Yellow 3
2832-40-8
DTXSID6021450
313
For Reference Only
15
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
C.I. Food Red 5
3761-53-3
DTXSID8021228
313
C.I. Food Red 15
81-88-9
DTXSID6042369
313
C.I. Solvent Orange 7
3118-97-6
DTXS ID5040706
313
C.I. Solvent Yellow 3
97-56-3
DTXSID1020069
313
C.I. Solvent Yellow 14
842-07-9
DTXSID4021135
313
C.I. Solvent Yellow 34
492-80-8
DTXSID7043821
100
313
U014
C.I. Vat Yellow 4
128-66-5
DTXSID6021454
313
Cobalt
7440-48-4
DTXS ID 1031040
313
Cobalt carbonyl
10210-68-1
DTXSID10895040
10/10,000
10
313c
Cobalt Compounds
N096
DTXSID201336432
&
313
Cobalt, ((2,2'-(1,2-
ethanediylbis(nitrilomethylidyne))bis(6-
fluorophenylato))(2-)-N,N',0,0')-
62207-76-5
DTXSID40893079
100/10,000
100
313c
Cobaltous bromide
7789-43-7
DTXSID50894158
1,000
1,000,000
313c
Cobaltous formate
544-18-3
DTXSID1060267
1,000
1,000,000
313c
Cobaltous sulfamate
14017-41-5
DTXSID50890736
1,000
1,000,000
313c
Coke Oven Emissions
N.A.
DTXSID7023984
1
313
U209
Colchicine
64-86-8
DTXSID5024845
10/10,000
10
Copper It
7440-50-8
DTXSID2023985
5,000
313
Copper Compounds
N100
DTXSID901336433
&
313
Copper cyanide
544-92-3
DTXSID7023986
10
313c
P029
Coumaphos
56-72-4
DTXSID2020347
10
10,000
100/10,000
10
Coumatetralyl
5836-29-3
DTXSID8041799
500/10,000
500
Creosote
8001-58-9
DTXSID2023987
313
Creosote
N.A.
DTXSID2023987
1
U051
p-Cresidine
120-71-8
DTXSID1020350
313
m -Cresol
108-39-4
DTXSID6024200
100
100,000i
313
U052
o-Cresol
95-48-7
DTXSID8021808
100
100,000i
1,000/10,000
100
313
U052
p -Cresol
106-44-5
DTXSID7021869
100
100,000i
313
U052
Cresol (mixed isomers)
1319-77-3
DTXSID3024364
100
100,000
313
U052
Crimidine
535-89-7
DTXSID0041800
100/10,000
100
Crotonaldehyde
4170-30-3
DTXSID8024864
20,000
100
100,000
1,000
100
313
U053
For Reference Only
16
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Crotonaldehyde, (E)-
123-73-9
DTXSID6020351
20,000
100
1,000
100
U053
Cumene
98-82-8
DTXSID1021827
5,000
313
U055
Cumene hydroperoxide
80-15-9
DTXSID3024869
10
313
U096
Cupferron
135-20-6
DTXSID1020352
313
Cupr
c acetate
142-71-2
DTXSID2059720
100
100,000
313c
Cupr
c acetoarsenite
12002-03-8
DTXSID0024846
1
1,000
500/10,000
1
313c
Cupr
c chloride
7447-39-4
DTXSID7040449
10
10,000
313c
Cupr
c nitrate
3251-23-8
DTXSID7040314
100
100,000
313c
Cupr
c oxalate(5)
814-91-5
DTXSID0041802
100,000
313c
Cupr
c oxalate(5)
55671-32-4
DTXSID90974428
100
Cupr
c sulfate
7758-98-7
DTXSID6034479
10
10,000
313c
Cupr
c sulfate, ammoniated
10380-29-7
DTXSID70908605
100
100,000
313c
Cupr
c tartrate
815-82-7
DTXSID00883592
100
100,000
313c
Cyanazine
21725-46-2
DTXSID1023990
313
Cyanide Compounds
N106
DTXSID601336389
&
313
Cyanides (soluble salts and
complexes), not otherwise specified
N.A.
DTXSID6023991
10
313
Cyanogen
460-19-5
DTXSID1023992
10,000
100
P031
Cyanogen bromide
506-68-3
DTXSID9021550
1,000
500/10,000
1,000
313c
U246
Cyanogen chloride
506-77-4
DTXSID4021551
10,000
10
10,000
313c
P033
Cyanogen iodide
506-78-5
DTXSID50870573
1,000/10,000
1,000
313c
Cyanophos
2636-26-2
DTXSID0041806
1,000
1,000
Cyanuric fluoride
675-14-9
DTXSID6060975
100
100
313c
Cycloate
1134-23-2
DTXSID6032356
313
Cyclohexanamine
108-91-8
DTXSID1023996
15,000
10,000
10,000
Cyclohexane
110-82-7
DTXSID4021923
1,000
1,000,000
313
U056
1,4-Cyclohexane diisocyanate
2556-36-7
DTXSID8062521
313-N120
Cyclohexane, 1,2,3,4,5,6-hexachloro-
,(1 .alpha.,2.alpha.,3. beta.,4.alpha.,5.alp
ha.,6.beta.)-
58-89-9
DTXSID2020686
1
1,000
1,000/10,000
1
X
U129
For Reference Only
17
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Cyclohexanesulfonic acid,
decafluoro(pentafluoroethyl)-,
potassium salt
67584-42-3
DTXSID40880565
313
Cyclohexanesulfonic acid,
decafluoro(trifluoromethyl)-, potassium
salt
68156-07-0
DTXSID50880591
313
U115
Cyclohexanesulfonic acid,
nonafluorobis(trifluoromethyl)-,
potassium salt
68156-01-4
DTXSID80880584
313
Cyclohexanesulfonic acid, undecafluoro
, potassium salt
3107-18-4
DTXSID5062847
313
Cyclohexanol
108-93-0
DTXSID4021894
313
Cyclohexanone
108-94-1
DTXSID6020359
5,000
U057
Cycloheximide
66-81-9
DTXSID6024882
100/10,000
100
Cyclohexylamine
108-91-8
DTXSID1023996
15,000
10,000
10,000
2-Cyclohexyl-4,6-dinitrophenol
131-89-5
DTXSID4024064
100
P034
Cyclophosphamide
50-18-0
DTXSID5020364
10
U058
Cyclopropane
75-19-4
DTXSID4058786
10,000
Cyfluthrin
68359-37-5
DTXSID5035957
313
Cyhalothrin
68085-85-8
DTXSID6023997
313
2,4-D
94-75-7
DTXSID0020442
100
100,000
313
U240
2,4-D Acid
94-75-7
DTXSID0020442
100
100,000
X
U240
2,4-D 2-butoxyethyl ester
1929-73-3
DTXSID1032309
100
100,000
313
2,4-D butyl ester
94-80-4
DTXSID5020443
100
100,000i
313
2,4-D Esters
94-11-1
DTXSID5020445
100
100,000
X
2,4-D Esters
94-79-1
DTXSID60916714
100
100,000
2,4-D Esters
94-80-4
DTXSID5020443
100
100,000i
X
2,4-D Esters
1320-18-9
DTXSID6032308
100
100,000
X
2,4-D Esters
1928-38-7
DTXSID6041349
100
100,000
2,4-D Esters
1928-61-6
DTXSID4062066
100
100,000
2,4-D Esters
1929-73-3
DTXSID1032309
100
100,000
X
2,4-D Esters
2971-38-2
DTXSID6041345
100
100,000
X
2,4-D Esters
25168-26-7
DTXSID0020444
100
100,000
For Reference Only
18
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
CAS Number/
CAA
CWA
EPCRA
313 Category
112(r)(7)
CERCLA
311 (j)(5)
EPCRA 302
304 EHS
EPCRA
RCRA
Name
Codes
Comptox
TQ
HS RQ
HS TQ
EHS TPQ
RQ
313 TRI
Code
2,4-D Esters
53467-11-1
DTXSID90896818
100
100,000
2,4-D isopropyl ester
94-11-1
DTXSID5020445
100
100,000
313
2,4-D propylene glycol butyl ether ester
1320-18-9
DTXSID6032308
100
100,000
313
2,4-D, salts and esters
94-75-7
DTXSID0020442
100
100,000
U240
Daunomycin
20830-81-3
DTXSID7022883
10
U059
Dazomet
533-74-4
DTXSID7024902
313
Dazomet, sodium salt
53404-60-7
DTXSID2058417
313
2,4-DB
94-82-6
DTXSID7024035
313
DBCP
96-12-8
DTXSID3020413
1
X
U066
DDD
72-54-8
DTXSID4020373
1
1,000
U060
DDE b
72-55-9
DTXSID9020374
1
DDE b
3547-04-4
DTXSID1063069
5,000
DDT
50-29-3
DTXSID4020375
1
1,000
U061
DDT and Metabolites
N.A.
DTXSID4020375
&
Decaborane(14)
17702-41-9
DTXSID80880049
500/10,000
500
Decabromodiphenyl oxide
1163-19-5
DTXSID9020376
313
Decane,
1,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8-
heptadecafluoro-10-iodo-
2043-53-0
DTXSID6062123
313
1-Decanesulfonic acid,
1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10
,10-heneicosafluoro-, ammonium salt
67906-42-7
DTXSID3070830
313
1-Decanesulfonyl chloride,
3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-
heptadecafluoro-
27619-90-5
DTXSID2067329
X
1-Decanol,
3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-
heptadecafluoro-
678-39-7
DTXSID7029904
313
DEHP
117-81-7
DTXSID5020607
100
X
U028
Demeton
8065-48-3
DTXSID5022306
500
500
De meto n-S -methyl
919-86-8
DTXSID5037521
500
500
For Reference Only
19
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Desmedipham
13684-56-5
DTXSID0034518
313
2,4-D 2-ethylhexyl ester
1928-43-4
DTXSID4034235
313
2,4-D 2-ethyl-4-methylpentyl ester
53404-37-8
DTXSID2034679
313
Dialifor
10311-84-9
DTXSID0037522
100/10,000
100
Diallate
2303-16-4
DTXSID2020391
100
313
U062
2,4-Diaminoanisole
615-05-4
DTXSID5041358
313
2,4-Diaminoanisole sulfate
39156-41-7
DTXSID7020398
313
4,4'-Diaminodiphenyl ether
101-80-4
DTXSID0021094
313
Diaminotoluene
496-72-0
DTXSID9024930
10
U221
Diaminotoluene
823-40-5
DTXSID4027319
10
U221
2,4-Diaminotoluene
95-80-7
DTXSID4020402
10
313
Diaminotoluene (mixed isomers)
25376-45-8
DTXSID9027869
10
313
U221
Diazinon
333-41-5
DTXSID9020407
1
1,000
313
Diazomethane
334-88-3
DTXSID0024008
100
313
Dibenz[a,h]acridine
226-36-8
DTXSID3059761
313-N590
Dibenz[a,j]acridine
224-42-0
DTXSID4059758
313-N590
Dibenz[a,h]anthracene
53-70-3
DTXSID9020409
1
313-N590
U063
7H-Dibenzo[c,g]carbazole
194-59-2
DTXSID9059755
313-N590
Dibenzo[a,e]fluoranthene
5385-75-1
DTXSID9063821
313-N590
Dibenzofuran
132-64-9
DTXSID2021993
100
313
Dibenzo[a,e]pyrene
192-65-4
DTXSID3052690
313-N590
Dibenzo[a,h]pyrene
189-64-0
DTXSID4059752
313-N590
Dibenzo[a,l]pyrene
191-30-0
DTXSID9059753
313-N590
Dibenz[a,i]pyrene
189-55-9
DTXSID9059751
10
X
U064
Diborane
19287-45-7
DTXSID9024938
2,500
100
100
Diborane(6)
19287-45-7
DTXSID9024938
2,500
100
100
1,2-Dibromo-3-chloropropane
96-12-8
DTXSID3020413
1
313
U066
1,2-Dibromoethane
106-93-4
DTXSID3020415
1
1,000
313
U067
2,2-Dibromo-3-nitrilopropionamide
10222-01-2
DTXSID5032361
313s
Di b ro motetraf I u o ro eth a n e
124-73-2
DTXSID0041226
313
Dibutyl phthalate
84-74-2
DTXSID2021781
10
10,000
313
U069
For Reference Only
20
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Dibutyltin dichloride
683-18-1
DTXSID8027292
313
Dicamba
1918-00-9
DTXSID4024018
1,000
1,000,000
313
Dichlobenil
1194-65-6
DTXSID5032365
100
100,000
Dichlone
117-80-6
DTXSID7020425
1
1,000
Dichloran
99-30-9
DTXSID2020426
313
Dichlorobenzene
25321-22-6
DTXSID0041854
100
100,000
X
o-Dichlorobenzene
95-50-1
DTXSID6020430
100
100,000i
X
U070
1,2-Dichlorobenzene
95-50-1
DTXSID6020430
100
100,000i
313
U070
1,3-Dichlorobenzene
541-73-1
DTXSID6022056
100
313
U071
1,4-Dichlorobenzene
106-46-7
DTXSID1020431
100
100,000i
313
U072
Dichlorobenzene (mixed isomers)
25321-22-6
DTXSID0041854
100
100,000
313
Dichlorobenzidine
1331-47-1
DTXSID4061676
&
3,3'-Dichlorobenzidine
91-94-1
DTXSID6020432
1
313
U073
3,3'-Dichlorobenzidine dihydrochloride
612-83-9
DTXSID1020433
313
3,3'-Dichlorobenzidine sulfate
64969-34-2
DTXSID80886703
313
Dichlorobromomethane
75-27-4
DTXSID1020198
5,000
313
trans-1,4-Dichlorobutene
110-57-6
DTXSID6020434
500
500
X
1,4-Dichloro-2-butene
764-41-0
DTXSID9027310
313
U074
cis-1,4-dichloro-2-butene
1476-11-5
DTXSID3027405
313i
U074
trans-1,4-Dichloro-2-butene
110-57-6
DTXSID6020434
500
500
313
1,2-Dichloro-1,1-difluoroethane
1649-08-7
DTXSID5031393
313
Dichlorodifluoromethane
75-71-8
DTXSID6020436
5,000
313
U075
1,1-Dichloroethane
75-34-3
DTXSID1020437
1,000
X
U076
1,2-Dichloroethane
107-06-2
DTXSID6020438
100
100,000
313
U077
1,1-Dichloroethylene
75-35-4
DTXSID8021438
10,000
100
100,000
X
U078
1,2-Dichloroethylene
540-59-0
DTXSID8024991
313
U079
cis- 1,2-Dichloroethylene
156-59-2
DTXSID2024030
313i
U079
frans-1,2-Dichloroethylene
156-60-5
DTXSID7024031
1,000
313i
U079
Dichloroethyl ether
111-44-4
DTXSID9020168
10
10,000
10
X
U025
1,1-Dichloro-1-fluoroethane
1717-00-6
DTXSID2020422
313
Dichlorofluoromethane
75-43-4
DTXSID7052498
313
For Reference Only
21
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
CAS Number/
CAA
CWA
EPCRA
313 Category
112(r)(7)
CERCLA
311 (j)(5)
EPCRA 302
304 EHS
EPCRA
RCRA
Name
Codes
Comptox
TQ
HS RQ
HS TQ
EHS TPQ
RQ
313 TRI
Code
Dichloroisopropyl ether
108-60-1
DTXSID4020167
1,000
X
U027
Dichloromethane
75-09-2
DTXSID0020868
1,000
313
U080
3,6-Dichloro-2-methoxybenzoic acid
1918-00-9
DTXSID4024018
1,000
1,000,000
X
Dichloromethyl ether
542-88-1
DTXSID8020173
1,000
10
100
10
X
P016
Dichloromethylphenylsilane
149-74-6
DTXSID6029173
1,000
1,000
Dichloropentafluoropropane
127564-92-5
DTXSID401019240
313
2,2-Dichloro-1,1,1,3,3-
pentafluoropropane
128903-21-9
DTXSID6042024
313
2,3-Dichloro-1,1,1,2,3-
pentafluoropropane
422-48-0
DTXSID1042025
313
1,2-Dichloro-1,1,2,3,3-
pentafluoropropane
422-44-6
DTXSID6042026
313
3,3-Dichloro-1,1,1,2,2-
pentafluoropropane
422-56-0
DTXSID1042027
313
1,3-Dichloro-1,1,2,2,3-
pentafluoropropane
507-55-1
DTXSID6042028
313
1,1 -Dichloro-1,2,2,3,3-
pentafluoropropane
13474-88-9
DTXSID1042029
313
1,2-Dichloro-1,1,3,3,3-
pentafluoropropane
431-86-7
DTXSID0042030
313
1,3-Dichloro-1,1,2,3,3-
pentafluoropropane
136013-79-1
DTXSID5042031
313
1,1 -Dichloro-1,2,3,3,3-
pentafluoropropane
111512-56-2
DTXSID0042032
313
Dichlorophene
97-23-4
DTXSID6021824
313
2,4-Dichlorophenol
120-83-2
DTXSID1020439
100
313
U081
2,6-Dichlorophenol
87-65-0
DTXSID2025004
100
U082
Dichlorophenylarsine
696-28-6
DTXSID7061011
1
500
1
P036
Dichloropropane
26638-19-7
DTXSID901023224
1,000
1,000,000
Dichloropropane - Dichloropropene
(mixture)
8003-19-8
DTXSID0058481
100
100,000
1,1-Dichloropropane
78-99-9
DTXSID9058818
1,000
1,000,000i
1,2-Dichloropropane
78-87-5
DTXSID0020448
1,000
1,000,000i
313
U083
1,3-Dichloropropane
142-28-9
DTXSID6022004
1000
1,000,000i
For Reference Only
22
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
1,3-Dichloro-2-propanol
96-23-1
DTXSID6025010
313
Dichloropropene
26952-23-8
DTXSID00891738
1
100,000
U061
1,3-Dichloropropene
542-75-6
DTXSID1022057
100
100,000i
X
U084
cis-1,3-Dichloropropene
10061-01-5
DTXSID2024030
313i
trans-1,3-Dichloropropene
10061-02-6
DTXSID2042480
313
2,3-Dichloropropene
78-88-6
DTXSID6025012
100
100,000i
313
2,2-Dichloropropionic acid
75-99-0
DTXSID2021575
5,000
5,000,000
1,3-Dichloropropylene
542-75-6
DTXSID1022057
100
100,000i
313
U084
Dichlorosilane
4109-96-0
DTXSID1052082
10,000
Dichlorotetrafluoroethane
76-14-2
DTXSID8026434
313
Dichlorotrifluoroethane
34077-87-7
DTXSID401022219
313
Dichloro-1,1,2-trifluoroethane
90454-18-5
DTXSID701022220
313
1,1-Dichloro-1,2,2-trifluoroethane
812-04-4
DTXSID6042022
313
1,2-Dichloro-1,1,2-trifluoroethane
354-23-4
DTXSID1042021
313
2,2-Dichloro-1,1,1-trifluoroethane
306-83-2
DTXSID7020712
313
Dichlorvos
62-73-7
DTXSID5020449
10
10,000
1,000
10
313
Diclofop methyl
51338-27-3
DTXSID0032605
313
Dicofol
115-32-2
DTXSID4020450
10
10,000
313
Dicrotophos
141-66-2
DTXSID9023914
100
100
Dicyclopentadiene
77-73-6
DTXSID5025023
313
Dieldrin
60-57-1
DTXSID9020453
1
1,000
P037
Diepoxybutane
1464-53-5
DTXSID0041307
10
500
10
313
U085
Diethanolamine
111-42-2
DTXSID3021932
100
313
Diethatyl ethyl
38727-55-8
DTXSID9032539
313
Diethylamine
109-89-7
DTXSID6021909
100
100,000
A/,A/-Diethylaniline
91-66-7
DTXSID8021800
1,000
Diethylarsine
692-42-2
DTXSID50988905
1
P038
Diethyl chlorophosphate
814-49-3
DTXSID4052556
500
500
Diethyldiisocyanatobenzene
134190-37-7
DTXSID901023436
313-N120
Di(2-ethylhexyl) phthalate
117-81-7
DTXSID5020607
100
313
U028
0,0-Diethyl S-methyl dithiophosphate
3288-58-2
DTXSID2062957
5,000
U087
For Reference Only
23
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
CAS Number/
CAA
CWA
EPCRA
313 Category
112(r)(7)
CERCLA
311 (j)(5)
EPCRA 302
304 EHS
EPCRA
RCRA
Name
Codes
Comptox
TQ
HS RQ
HS TQ
EHS TPQ
RQ
313 TRI
Code
Diethyl-p-nitrophenyl phosphate
311-45-5
DTXSID6024046
100
P041
Diethyl phthalate
84-66-2
DTXSID7021780
1,000
U088
0,0-Diethyl O-pyrazinyl
phosphorothioate
297-97-2
DTXSID8042470
100
500
100
P040
Diethylstilbestrol
56-53-1
DTXSID3020465
1
U089
Diethyl sulfate
64-67-5
DTXSID1024045
10
313
Diflubenzuron
35367-38-5
DTXSID1024049
313
Difluoroethane
75-37-6
DTXSID0024050
10,000
Digitoxin
71-63-6
DTXSID0022933
100/10,000
100
Diglycidyl ether
2238-07-5
DTXSID4051871
1,000
1,000
Diglycidyl resorcinol ether
101-90-6
DTXSID2020470
313
Digoxin
20830-75-5
DTXSID5022934
10/10,000
10
Dihydrosafrole
94-58-6
DTXSID7020475
10
313
U090
Diisocyanates (includes only 20
chemicals)
N120
DTXSID601336434
313
4,4'-Diisocyanatodiphenyl ether
4128-73-8
DTXSID6044937
313-N120
2,4'-Diisocyanatodiphenyl sulfide
75790-87-3
DTXSID2072833
313-N120
Diisononyl phthalate
28553-12-0
DTXSID4022521
313-N125
Diisononyl Phthalates
N125
Not Available
313
Diisopropylfluorophosphate
55-91-4
DTXSID1040667
100
100
100
P043
Dimefox
115-26-4
DTXSID8041870
500
500
1,4:5,8-Dimethanonaphthalene,
1,2,3,4,10,10-hexachloro-1,4,4a,5,8,8a-
hexahydro-
(1 .alpha.,4.alpha.,4a.beta.,5.alpha.,8.al
pha.,8a.beta.)-
309-00-2
DTXSID8020040
1
1,000
500/10,000
1
X
P004
Dimethipin
55290-64-7
DTXSID0024052
313
Dimethoate
60-51-5
DTXSID7020479
10
500/10,000
10
313
P044
3,3'-Dimethoxybenzidine
119-90-4
DTXSID3025091
100
313
U091
3,3'-Dimethoxybenzidine
dihydrochloride
20325-40-0
DTXSID1020485
313
3,3'-Dimethoxybenzidine-4,4'-
diisocyanate
91-93-0
DTXSID6020484
313-N120
For Reference Only
24
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
CAS Number/
CAA
CWA
EPCRA
313 Category
112(r)(7)
CERCLA
311 (j)(5)
EPCRA 302
304 EHS
EPCRA
RCRA
Name
Codes
Comptox
TQ
HS RQ
HS TQ
EHS TPQ
RQ
313 TRI
Code
3,3'-Dimethoxybenzidine
monohydrochloride
111984-09-9
DTXSID5036848
313
Dimethylamine
124-40-3
DTXSID5024057
10,000
1,000
1,000,000
313
U092
Dimethylamine dicamba
2300-66-5
DTXSID9034369
313
4-Dimethylaminoazobenzene
60-11-7
DTXSID5020491
10
313
U093
Dimethylaminoazobenzene
60-11-7
DTXSID5020491
10
X
U093
A/,A/-Dimethylaniline
121-69-7
DTXSID2020507
100
313
7,12-Dimethylbenz[a]anthracene
57-97-6
DTXSID1020510
1
313-N590
U094
3,3'-Dimethylbenzidine
119-93-7
DTXSID5024059
10
313
U095
3,3'-Dimethylbenzidine dihydrochloride
612-82-8
DTXSID6020511
313
3,3'-Dimethylbenzidine dihydrofluoride
41766-75-0
DTXSID40961969
313
2,2-Dimethyl-1,3-benzodioxol-4-ol
methylcarbamate
22781-23-3
DTXSID9032327
100
X
U278
Dimethylcarbamoyl chloride
79-44-7
DTXSID1020512
1
313
U097
Dimethyl chlorothiophosphate
2524-03-0
DTXSID0027486
500
500
313
Dimethyldichlorosilane
75-78-5
DTXSID9026425
5,000
500
500
3,3'-Dimethyl-4,4'-diphenylene
diisocyanate
91-97-4
DTXSID7041463
313-N120
3,3'-Dimethyldiphenylmethane-4,4'-
diisocyanate
139-25-3
DTXSID3044548
313-N120
Dimethylformamide
68-12-2
DTXSID6020515
100
X
A/,A/-Dimethylformamide
68-12-2
DTXSID6020515
100
313
1,1-Dimethylhydrazine
57-14-7
DTXSID1020516
15,000
10
1,000
10
313
U098
Dimethylhydrazine
57-14-7
DTXSID1020516
15,000
10
1,000
10
X
U098
2,4-Dimethylphenol
105-67-9
DTXSID2021864
100
313
U101
Dimethyl-p-phenylenediamine
99-98-9
DTXSID6025149
10/10,000
10
Dimethyl phosphorochloridothioate
2524-03-0
DTXSID0027486
500
500
X
Dimethyl phthalate
131-11-3
DTXSID3022455
5,000
313
U102
2,2-Dimethylpropane
463-82-1
DTXSID6029179
10,000
Dimethyl sulfate
77-78-1
DTXSID5024055
100
500
100
313
U103
Dimetilan
644-64-4
DTXSID2041880
1
500/10,000
1
P191
Dinitrobenzene (mixed isomers)
25154-54-5
DTXSID20891710
100
100,000
For Reference Only
25
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
CAS Number/
CAA
CWA
EPCRA
313 Category
112(r)(7)
CERCLA
311 (j)(5)
EPCRA 302
304 EHS
EPCRA
RCRA
Name
Codes
Comptox
TQ
HS RQ
HS TQ
EHS TPQ
RQ
313 TRI
Code
m-Dinitrobenzene
99-65-0
DTXSID9024065
100
100,000i
313
o-Dinitrobenzene
528-29-0
DTXSID4024066
100
100,000i
313
p-Dinitrobenzene
100-25-4
DTXSID0021836
100
100,000i
313
Dinitrobutyl phenol
88-85-7
DTXSID3020207
1,000
100/10,000
1,000
313
P020
Dinitrocresol
534-52-1
DTXSID1022053
10
10/10,000
10
X
P047
4,6-Dinitro-o -cresol
534-52-1
DTXSID1022053
10
10/10,000
10
313
P047
4,6-Dinitro-o-cresol and salts
534-52-1
DTXSID1022053
10
P047
Dinitrophenol(6)
25550-58-7
DTXSID40894743
10
2,4-Dinitrophenol(7)
51-28-5
DTXSID0020523
10
10,000
313
P048
2,5-Dinitrophenol
329-71-5
DTXSID9022021
10
10,000i
2,6-Dinitrophenol
573-56-8
DTXSID5022063
10
10,000i
1,6-Dinitropyrene
42397-64-8
DTXSID90872819
313-N590
1,8-Dinitropyrene
42397-65-9
DTXSID2073514
313-N590
Dinitrotoluene (mixed isomers)
25321-14-6
DTXSID5027859
10
10,000
313
2,4-Dinitrotoluene
121-14-2
DTXSID0020529
10
10,000i
313
U105
2,6-Dinitrotoluene
606-20-2
DTXSID5020528
100
10,000i
313
U106
3,4-Dinitrotoluene
610-39-9
DTXSID8027240
10
10,000i
Dinocap
39300-45-3
DTXSID3040352
313
Dinoseb
88-85-7
DTXSID3020207
1,000
100/10,000
1,000
X
P020
Dinoterb
1420-07-1
DTXSID7041883
500/10,000
500
n-Dioctylphthalate
117-84-0
DTXSID1021956
5,000
U107
Di-n-octyl phthalate
117-84-0
DTXSID1021956
5,000
U107
1,4-Dioxane
123-91-1
DTXSID4020533
100
313
U108
Dioxathion
78-34-2
DTXSID9020534
500
500
Dioxin and dioxin-like compounds
(includes only 17 chemicals)
N150
DTXSID301336435
313
Diphacinone
82-66-6
DTXSID4032378
10/10,000
10
Diphenamid
957-51-7
DTXSID8024072
313
Diphenylamine
122-39-4
DTXSID4021975
313
1,2-Diphenylhydrazine
122-66-7
DTXSID7020710
10
313
U109
Diphenylhydrazine
38622-18-3
DTXSID201057573
&
For Reference Only
26
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
CAS Number/
CAA
CWA
EPCRA
313 Category
112(r)(7)
CERCLA
311 (j)(5)
EPCRA 302
304 EHS
EPCRA
RCRA
Name
Codes
Comptox
TQ
HS RQ
HS TQ
EHS TPQ
RQ
313 TRI
Code
Diphosphoramide, octamethyl-
152-16-9
DTXSID0042373
100
100
100
P085
Dipotassium endothall
2164-07-0
DTXSID0034568
313
Dipropylamine
142-84-7
DTXSID2025185
5,000
U110
Dipropyl isocinchomeronate
136-45-8
DTXSID8032544
313
Di-n -propylnitrosamine
621-64-7
DTXSID6021032
10
X
U111
Diquat
85-00-7
DTXSID3024075
1,000
1,000,000
Diquat
2764-72-9
DTXSID6034554
1,000
1,000,000
Disodium cyanodithioimidocarbonate
138-93-2
DTXSID6034423
313
Disulfides, bis(y-io-perfluoro-C6-20-
alkyl)
118400-71-8
DTXSID70881984
313
Disulfoton
298-04-4
DTXSID0022018
1
1,000
500
1
P039
Dithiazanine iodide
514-73-8
DTXSID8022955
500/10,000
500
Dithiobiuret
541-53-7
DTXSID2034968
100
100/10,000
100
X
P049
2,4-Dithiobiuret
541-53-7
DTXSID2034968
100
100/10,000
100
313
P049
Diuron
330-54-1
DTXSID0020446
100
100,000
313
Dodecane,
1,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,
10-heneicosafluoro-12-iodo-
2043-54-1
DTXSID1062124
313
1-Dodecanesulfonyl chloride,
3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,
12,12,12-heneicosafluoro-
27619-91-6
DTXSID1067330
313
1-Dodecanol,
3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,
12,12,12-heneicosafluoro-
865-86-1
DTXSID2029905
313
Dodecylbenzenesulfonic acid
27176-87-0
DTXSID6027923
1,000
1,000,000
Dodine
2439-10-3
DTXSID3020548
313
2,4-DP
120-36-5
DTXSID0020440
313
1-Eicosanol,
3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,
12,12,13,13,14,14,15,15,16,16,17,17,1
8,18,19,19,20,20,20-
h e ptatri aco ntaf I u o ro-
65104-65-6
DTXSID2070219
313
Emetine, dihydrochloride
316-42-7
DTXSID7020558
1/10,000
1
For Reference Only
27
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Endosulfan
115-29-7
DTXSID1020560
1
1,000
10/10,000
1
P050
Endosulfan and Metabolites
N.A.
DTXSID101349927
&
313
U171
Endosulfan sulfate
1031-07-8
DTXSID3037541
1
alpha - Endosulfan
959-98-8
DTXSID9037539
1
beta - Endosulfan
33213-65-9
DTXSID8037540
1
Endothall
145-73-3
DTXSID7024081
1,000
P088
Endothion
2778-04-3
DTXSID2041911
500/10,000
500
Endrin
72-20-8
DTXSID6020561
1
1,000
500/10,000
1
P051
Endrin aldehyde
7421-93-4
DTXSID0047743
1
Endrin and Metabolites
N.A.
DTXSID6020561
&
Epichlorohydrin
106-89-8
DTXSID1020566
20,000
100
100,000
1,000
100
313
U041
Epinephrine
51-43-4
DTXSID5022986
1,000
P042
EPN
2104-64-5
DTXSID7022174
100/10,000
100
Ergocalciferol
50-14-6
DTXSID5020233
1,000/10,000
1,000
Ergotamine tartrate
379-79-3
DTXSID3025253
500/10,000
500
Ethanamine
75-04-7
DTXSID8025678
10,000
100
100,000
Ethane
74-84-0
DTXSID6026377
10,000
Ethane, chloro-
75-00-3
DTXSID1020302
10,000
100
X
1,2-Ethanediamine
107-15-3
DTXSID5021881
20,000
5,000
5,000,000
10,000
5,000
Ethane, 1,1-difluoro-
75-37-6
DTXSID0024050
10,000
Ethanedinitrile
460-19-5
DTXSID1023992
10,000
100
P031
Ethane, 1,1'-oxybis-
60-29-7
DTXSID3021720
10,000
100
U117
Ethaneperoxoic acid, reaction products
with 3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10
heptadecafluorodecyl thiocyanate and
3,3,4,4,5,5,6,6,7,7,8,8,8-
tridecafluorooctyl thiocyanate
182176-52-9
DTXSID80107243
313
Ethaneperoxoic acid
79-21-0
DTXSID1025853
10,000
500
500
X
Ethanesulfonyl chloride, 2-chloro-
1622-32-8
DTXSID5061825
500
500
Ethane, 1,1,1,2-tetrachloro-
630-20-6
DTXSID2021317
100
X
U208
Ethane, 1,1'-thiobis[2-chloro-
505-60-2
DTXSID0037100
500
500
X
For Reference Only
28
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
CAS Number/
CAA
CWA
EPCRA
313 Category
112(r)(7)
CERCLA
311 (j)(5)
EPCRA 302
304 EHS
EPCRA
RCRA
Name
Codes
Comptox
TQ
HS RQ
HS TQ
EHS TPQ
RQ
313 TRI
Code
Ethanethiol
75-08-1
DTXSID9026394
10,000
Ethanimidothioic acid, 2-
(d i met hy la mi n o)-N -hyd roxy-2-ox o-,
methyl ester
30558-43-1
DTXSID9029350
5,000
U394
Ethanimidothioic acid, N-
[[methylamino)carbonyl]
16752-77-5
DTXSID1022267
100
500/10,000
100
P066
Ethanaminium, N,N-diethyl-N-methyl-2-
[(2-methyl-1-oxo-2-propenyl)oxy]-,
methyl sulfate, polymer with 2-
ethylhexyl 2-methyl-2- propenoate, a-
fluoro-w-[2-[(2-methyl-1 -oxo-2-
propenyl)oxy]ethyl]poly(difluoromethyle
ne), 2-hydroxyethyl 2-methyl-2-
propenoate and N-(hydroxymethyl)-2-
propenamide
65636-35-3
DTXSID40897592
313
Ethanaminium, N,N,N-triethyl-, salt with
1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-
heptadecafluoro-1 -octanesulfonic acid
(1:1)
56773-42-3
DTXSID5069128
313
Ethanol, 1,2-dichloro-, acetate
10140-87-1
DTXSID80893073
1,000
1,000
Ethanol, 2-ethoxy-
110-80-5
DTXSID7024087
1,000
X
U359
Ethanol, 2,2'-iminobis-, compd. with a-
fluoro-io-[2-
(phosphonooxy)ethyl]poly(difluoromethy
lene) (1:1)
65530-74-7
DTXSID80883030
313
Ethanol, 2,2'-iminobis-, compd. with a-
fluoro-io-[2-
(phosphonooxy)ethyl]poly(difluoromethy
lene) (2:1)
65530-63-4
DTXSID70883029
313
Ethanol, 2,2'-iminobis-, compd. with a,a'-
[phosphinicobis(oxy-2,1-
ethanediyl)]bis[io-
fluoropoly(difluoromethylene)] (1:1)
65530-64-5
DTXSID50882914
313
Ethanol, 2-(nonylphenoxy)-
27986-36-3
DTXSID9043809
313-N535
Ethanol, 2-[2-(nonylphenoxy)ethoxy]-
27176-93-8
DTXSID00872587
313-N535
For Reference Only
29
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
CAS Number/
CAA
CWA
EPCRA
313 Category
112(r)(7)
CERCLA
311 (j)(5)
EPCRA 302
304 EHS
EPCRA
RCRA
Name
Codes
Comptox
TQ
HS RQ
HS TQ
EHS TPQ
RQ
313 TRI
Code
Ethanol, 2-[2-(4-nonylphenoxy)ethoxy]-
20427-84-3
DTXSID9058600
313-N535
Ethanol, 2-[2-[2-[2-(4-
nonylphenoxy)ethoxy]ethoxy]ethoxy]-
7311-27-5
DTXSID0064624
313-N535
Ethanol, 2,2'-oxybis-, dicarbamate
5952-26-1
DTXSID80884204
5000
U395
Ethene
74-85-1
DTXSID1026378
10,000
X
Ethene, bromotrifluoro-
598-73-2
DTXSID0060513
10,000
Ethene, chloro-
75-01-4
DTXSID8021434
10,000
1
X
U043
Ethene, chlorotrifluoro-
79-38-9
DTXSID3026485
10,000
Ethene, 1,1-dichloro-
75-35-4
DTXSID8021438
10,000
100
100,000
X
U078
Ethene, 1,1-difluoro-
75-38-7
DTXSID3021439
10,000
Ethene, ethoxy-
109-92-2
DTXSID3029609
10,000
Ethene, fluoro-
75-02-5
DTXSID3021435
10,000
Ethene, methoxy-
107-25-5
DTXSID4026761
10,000
Ethene, tetrafluoro-
116-14-3
DTXSID6021325
10,000
Ethion
563-12-2
DTXSID2024086
10
10,000
1,000
10
Ethoprop
13194-48-4
DTXSID4032611
1,000
1,000
313
Ethoprophos
13194-48-4
DTXSID4032611
1,000
1,000
X
2-Ethoxyethanol
110-80-5
DTXSID7024087
1,000
313
U359
Ethyl acetate
141-78-6
DTXSID1022001
5,000
U112
Ethyl acetylene
107-00-6
DTXSID4029141
10,000
Ethyl acrylate
140-88-5
DTXSID4020583
1,000
313
U113
Ethylbenzene
100-41-4
DTXSID3020596
1,000
1,000,000
313
Ethylbis(2-chloroethyl)amine
538-07-8
DTXSID0060220
500
500
Ethyl carbamate
51-79-6
DTXSID9021427
100
X
U238
Ethyl chloride
75-00-3
DTXSID1020302
10,000
100
X
Ethyl chloroformate
541-41-3
DTXSID1027186
313
Ethyl cyanide
107-12-0
DTXSID1021879
10,000
10
500
10
P101
S-Ethyl dipropylthiocarbamate
759-94-4
DTXSID1024091
313
Ethylene
74-85-1
DTXSID1026378
10,000
313
Ethylenebisdithiocarbamic acid, salts
and esters
N171
DTXSID001336436
313
For Reference Only
30
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Ethylenebisdithiocarbamic acid, salts &
esters
111-54-6
DTXSID5043972
5,000
X
U114
Ethylenediamine
107-15-3
DTXSID5021881
20,000
5,000
5,000,000
10,000
5,000
Ethylenediamine-tetraacetic acid
(EDTA)
60-00-4
DTXSID6022977
5,000
5,000,000
Ethylene dibromide
106-93-4
DTXSID3020415
1
1,000
X
U067
Ethylene dichloride
107-06-2
DTXSID6020438
100
100,000
X
U077
Ethylene fluorohydrin
371-62-0
DTXSID0059902
10
10
Ethylene glycol
107-21-1
DTXSID8020597
5,000
313
Ethyleneimine
151-56-4
DTXSID8020599
10,000
1
500
1
313
P054
Ethylene oxide
75-21-8
DTXSID0020600
10,000
10
1,000
10
313
U115
Ethylene thiourea
96-45-7
DTXSID5020601
10
313
U116
Ethyl ether
60-29-7
DTXSID3021720
10,000
100
U117
2-
[Ethyl[(heptadecafluorooctyl)sulfonyl]am
ino]ethyl acrylate
423-82-5
DTXSID3059975
313
2-
[Ethyl[(heptadecafluorooctyl)sulfonyl]am
ino]ethyl methacrylate
376-14-7
DTXSID8059922
313
N-Ethyl-N-(2-
hydroxyethyl)perfluorooctanesulfonamid
e
1691-99-2
DTXSID6027426
313
Ethylidene dichloride
75-34-3
DTXSID1020437
1,000
313
U076
Ethyl mercaptan
75-08-1
DTXSID9026394
10,000
Ethyl methacrylate
97-63-2
DTXSID1025308
1,000
U118
Ethyl methanesulfonate
62-50-0
DTXSID6025309
1
U119
Ethyl nitrite
109-95-5
DTXSID9046574
10,000
Ethylthiocyanate
542-90-5
DTXSID7060259
10,000
10,000
Ethyne
74-86-2
DTXSID6026379
10,000
Famphur
52-85-7
DTXSID7041966
1,000
313
P097
Fatty acids, C6-18, perfluoro,
ammonium salts
72623-77-9
DTXSID90104480
313
Fatty acids, C7-13, perfluoro,
ammonium salts
72968-38-8
DTXSID80104590
313
For Reference Only
31
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Fatty acids, linseed-oil, y-io-perfluoro-
C8-14-alkyl esters
178535-23-4
DTXSID40881931
313
Fenamiphos
22224-92-6
DTXSID3024102
10/10,000
10
Fenarimol
60168-88-9
DTXSID2032390
313
Fenbutatin oxide
13356-08-6
DTXSID7032391
313
Fenoxaprop-ethyl
66441-23-4
DTXSID2032392
313
Fenoxycarb
72490-01-8
DTXSID7032393
313
Fenpropathrin
39515-41-8
DTXSID0024002
313
Fensulfothion
115-90-2
DTXSID6021953
500
500
Fenthion
55-38-9
DTXSID8020620
313
Fenvalerate
51630-58-1
DTXSID101017940
313
Ferbam
14484-64-1
DTXSID8020624
313
Ferric ammonium citrate
1185-57-5
DTXSID9040477
1,000
1,000,000
Ferric ammonium oxalate
2944-67-4
DTXSID80890522
1,000
1,000,000
Ferric ammonium oxalate
55488-87-4
DTXSID101022327
1,000
1,000,000
313
U123
Ferric chloride
7705-08-0
DTXSID8020622
1,000
1,000,000
Ferric fluoride
7783-50-8
DTXSID1064823
100
100,000
Ferric nitrate
10421-48-4
DTXSID4065070
1,000
1,000,000
Ferric sulfate
10028-22-5
DTXSID5029712
1,000
1,000,000
Ferrous ammonium sulfate
10045-89-3
DTXSID4041028
1,000
1,000,000
Ferrous chloride
7758-94-3
DTXSID9029695
100
100,000
Ferrous sulfate
7782-63-0
DTXSID9040344
1000
1,000,000
Ferrous sulfate
7720-78-7
DTXSID0029688
1,000
1,000,000
Fine mineral fibers c
N.A.
DTXSID301351487
&
Fluazifop-butyl
69806-50-4
DTXSID3034612
313
Fluenetil
4301-50-2
DTXSID9058103
100/10,000
100
Fluometuron
2164-17-2
DTXSID8020628
313
Fluoranthene
206-44-0
DTXSID3024104
100
X
U120
Fluorene
86-73-7
DTXSID8024105
5,000
Fluorine
7782-41-4
DTXSID3024106
1,000
10
500
10
313
P056
Fluoroacetamide
640-19-7
DTXSID2034255
100
100/10,000
100
P057
For Reference Only
32
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Fluoroacetic acid
144-49-0
DTXSID0041981
10/10,000
10
Fluoroacetic acid, sodium salt
62-74-8
DTXSID8024311
10
10/10,000
10
X
P058
Fluoroacetyl chloride
359-06-8
DTXSID4059885
10
10
6:2 Fluorotelomer sulfonate acid
27619-97-2
DTXSID6067331
313
6:2 Fluorotelomer sulfonate ammonium
salt
59587-39-2
DTXSID10880512
313
6:2 Fluorotelomer sulfonate anion
425670-75-3
DTXSID40873417
313
6:2 Fluorotelomer sulfonate potassium
salt
59587-38-1
DTXSID50880511
313
6:2 Fluorotelomer sulfonate sodium salt
27619-94-9
DTXSID50896637
313
Fluorouracil
51-21-8
DTXSID2020634
500/10,000
500
313
5-Fluorouracil
51-21-8
DTXSID2020634
500/10,000
500
X
Fluvalinate
69409-94-5
DTXSID7024110
313
Folpet
133-07-3
DTXSID0021385
313
Fomesafen
72178-02-0
DTXSID7024112
313
Fonofos
944-22-9
DTXSID2024113
500
500
Formaldehyde
50-00-0
DTXSID7020637
15,000
100
100,000
500
100
313
U122
Formaldehyde cyanohydrin
107-16-4
DTXSID3025417
1,000
1,000
Formaldehyde (solution)
50-00-0
DTXSID7020637
15,000
100
100,000
500
100
X
U122
Formamide
75-12-7
DTXSID8025337
313
Formetanate hydrochloride
23422-53-9
DTXSID4032405
100
500/10,000
100
P198
Formic acid
64-18-6
DTXSID2024115
5,000
5,000,000
313
U123
Formic acid, methyl ester
107-31-3
DTXSID5025609
10,000
Formothion
2540-82-1
DTXSID4041991
100
100
Formparanate
17702-57-7
DTXSID9041992
100
100/10,000
100
P197
Fosthietan
21548-32-3
DTXSID4041993
500
500
Freon 113
76-13-1
DTXSID6021377
313
Fuberidazole
3878-19-1
DTXSID4041995
100/10,000
100
Fumaric acid
110-17-8
DTXSID3021518
5,000
5,000,000
Furan
110-00-9
DTXSID6020646
5,000
100
500
100
313
U124
Furan, tetrahydro-
109-99-9
DTXSID1021328
1,000
U213
For Reference Only
33
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
CAS Number/
CAA
CWA
EPCRA
313 Category
112(r)(7)
CERCLA
311 (j)(5)
EPCRA 302
304 EHS
EPCRA
RCRA
Name
Codes
Comptox
TQ
HS RQ
HS TQ
EHS TPQ
RQ
313 TRI
Code
Furfural
98-01-1
DTXSID1020647
5,000
5,000,000
U125
Gallium trichloride
13450-90-3
DTXSID8031360
500/10,000
500
Glycidol
556-52-5
DTXSID4020666
313
Glycidylaldehyde
765-34-4
DTXSID9020665
10
U126
Glycine, N-ethyl-N-
[(heptadecafluorooctyl)sulfonyl]-,
potassium salt
2991-51-7
DTXSID3042009
313
Glycine, N-ethyl-N-
[(pentadecafluoroheptyl)sulfonyl]-,
potassium salt
67584-62-7
DTXSID1070513
313
Glycine, N-ethyl-N-
[(tridecafluorohexyl)sulfonyl]-,
potassium salt
67584-53-6
DTXSID7070505
313
Glycine, N-ethyl-N-
[(undecafluoropentyl)sulfonyl]-,
potassium salt
67584-52-5
DTXSID2070504
313
Glycine, N-
[(heptadecafluorooctyl)sulfonyl]-N-
propyl-, potassium salt
55910-10-6
DTXSID60880486
313
Glycol Ethers d
N230
DTXSID001336450
&
313
Guanidine, A/-methyl-A/'-nitro-A/-nitroso-
70-25-7
DTXSID2020846
10
U163
Guthion
86-50-0
DTXSID3020122
1
1,000
10/10,000
1
Haloethers
N.A.
313
U096
Halomethanes
N.A.
&
X
U096
Halon 1211
353-59-3
DTXSID0027147
&
X
Halon 1301
75-63-8
DTXSID5026415
X
Halon 2402
124-73-2
DTXSID0041226
X
HCFC-121
354-14-3
DTXSID6059863
X
HCFC-121a
354-11-0
DTXSID6042020
X
HCFC-123
306-83-2
DTXSID7020712
X
HCFC-123a
354-23-4
DTXSID1042021
X
HCFC-123b
812-04-4
DTXSID6042022
X
For Reference Only
34
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
HCFC-124
2837-89-0
DTXSID7029245
X
HCFC-124a
354-25-6
DTXSID1042023
X
HCFC-132b
1649-08-7
DTXSID5031393
X
HCFC-133a
75-88-7
DTXSID5020289
X
HCFC-141 b
1717-00-6
DTXSID2020422
X
HCFC-142b
75-68-3
DTXSID9023960
X
HCFC-21
75-43-4
DTXSID7052498
X
HCFC-22
75-45-6
DTXSID6020301
X
HCFC-225aa
128903-21-9
DTXSID6042024
X
HCFC-225ba
422-48-0
DTXSID1042025
X
HCFC-225bb
422-44-6
DTXSID6042026
X
HCFC-225ca
422-56-0
DTXSID1042027
X
HCFC-225cb
507-55-1
DTXSID6042028
X
HCFC-225cc
13474-88-9
DTXSID1042029
X
HCFC-225da
431-86-7
DTXSID0042030
X
HCFC-225ea
136013-79-1
DTXSID5042031
X
HCFC-225eb
111512-56-2
DTXSID0042032
X
HCFC-253fb
460-35-5
DTXSID5042033
X
Heptachlor
76-44-8
DTXSID3020679
1
1,000
313
P059
Heptachlor and Metabolites
N.A.
DTXSID401349883
&
Heptachlor epoxide
1024-57-3
DTXSID1024126
1
1,2,3,4,6,7,8-heptachlorodibenzo-p-
dioxin
35822-46-9
DTXSID1052034
313-N150
1,2,3,4,6,7,8-heptachlorodibenzofuran
67562-39-4
DTXSID8052350
313-N150
1,2,3,4,7,8,9-heptachlorodibenzofuran
55673-89-7
DTXSID9052216
313-N150
1,4,5,6,7,8,8-Heptachloro-3a,4,7,7a-
tetrahydro-4,7-methano-1H-indene
76-44-8
DTXSID3020679
1
1,000
X
P059
3-
[[(Heptadecafluorooctyl)sulfonyl]amino]-
N,N,N-trimethyl-1-propanaminium
iodide
1652-63-7
DTXSID8051419
313
For Reference Only
35
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
2-
[[(Heptadecafluorooctyl)sulfonyl]methyla
mino]ethyl acrylate
25268-77-3
DTXSID80865199
313
1-Heptanesulfonamide, N-ethyl-
1,1,2,2,3,3,4,4,5,5,6,6,7,7,7-
pentadecafluoro-
68957-62-0
DTXSID1071907
313
1 -Heptanesulfonamide,
1,1,2,2,3,3,4,4,5,5,6,6,7,7,7-
pentadecafluoro-N-(2-hydroxyethyl)-N-
methyl-
68555-76-0
DTXSID6071665
313
1-Heptanesulfonic acid,
1,1,2,2,3,3,4,4,5,5,6,6,7,7,7-
pentadecafluoro-, ammonium salt
68259-07-4
DTXSID8071352
313
1-Heptanesulfonic acid,
1,1,2,2,3,3,4,4,5,5,6,6,7,7,7-
pentadecafluoro-, compd. with 2,2'-
iminobis[ethanol] (1:1)
70225-15-9
DTXSID60880946
313
1-Heptanesulfonic acid,
1,1,2,2,3,3,4,4,5,5,6,6,7,7,7-
pentadecafluoro-, potassium salt
60270-55-5
DTXSID9069392
313
1-Heptanesulfonyl fluoride,
1,1,2,2,3,3,4,4,5,5,6,6,7,7,7-
pentadecafluoro-
335-71-7
DTXSID9059830
313
3,6,9,12,15,18,21-Heptaoxatricosan-1-
ol, 23-(nonylphenoxy)-
27177-05-5
DTXSID80872585
313-N535
Hexabromocyclododecane
N270
DTXSID101336453
313
Hexabromocyclododecane
25637-99-4
DTXSID8025383
313-N270
1,2,5,6,9,10-Hexabromocyclododecane
3194-55-6
DTXSID4027527
313-N270
Hexachlorobenzene
118-74-1
DTXSID2020682
10
313
U127
Hexachloro-1,3-butadiene
87-68-3
DTXSID7020683
1
313
U128
Hexachlorobutadiene
87-68-3
DTXSID7020683
1
X
U128
Hexachlorocyclohexane (all isomers)
608-73-1
DTXSID7020687
&
alpha -Hexachlorocyclohexane
319-84-6
DTXSID2020684
10
313
For Reference Only
36
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
CAS Number/
CAA
CWA
EPCRA
313 Category
112(r)(7)
CERCLA
311 (j)(5)
EPCRA 302
304 EHS
EPCRA
RCRA
Name
Codes
Comptox
TQ
HS RQ
HS TQ
EHS TPQ
RQ
313 TRI
Code
Hexachlorocyclohexane (gamma
isomer)
58-89-9
DTXSID2020686
1
1,000
1,000/10,000
1
X
U129
Hexachlorocyclopentadiene
77-47-4
DTXSID2020688
10
10,000
100
10
313
U130
1,2,3,4,7,8-hexachlorodibenzo-p-dioxin
39227-28-6
DTXSID8052067
313-N150
1,2,3,6,7,8-hexachlorodibenzo-p-dioxin
57653-85-7
DTXSID0023824
313-N150
1,2,3,7,8,9-hexachlorodibenzo-p-dioxin
19408-74-3
DTXSID6023781
313-N150
1,2,3,4,7,8-hexachlorodibenzofuran
70648-26-9
DTXSID6029915
313-N150
1,2,3,6,7,8-hexachlorodibenzofuran
57117-44-9
DTXSID2069155
313-N150
1,2,3,7,8,9-hexachlorodibenzofuran
72918-21-9
DTXSID9052470
313-N150
2,3,4,6,7,8-hexachlorodibenzofuran
60851-34-5
DTXSID3052276
313-N150
Hexachloroethane
67-72-1
DTXSID7020689
100
313
U131
Hexachloronaphthalene
1335-87-1
DTXSID60872604
313
Hexachlorophene
70-30-4
DTXSID6020690
100
313
U132
Hexachloropropene
1888-71-7
DTXSID7062039
1,000
U243
Hexadecane,
1,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,
10,11,11,12,12,13,13,14,14-
nonacosafluoro-16-iodo-
65510-55-6
DTXSID4070322
313
1-Hexadecanol,
3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,
12,12,13,13,14,14,15,15,16,16,16-
nonacosafluoro-
60699-51-6
DTXSID4069422
313
Hexaethyl tetraphosphate
757-58-4
DTXSID80862401
100
P062
Hexafluoropropylene oxide dimer acid
13252-13-6
DTXSID70880215
313
Hexafluoropropylene oxide dimer acid
ammonium salt
62037-80-3
DTXSID40108559
313
1,3,4,6,7,8-Hexahydro-4,6,6,7,8,8-
hexamethylcyclopenta[g]-2-benzopyran
1222-05-5
DTXSID8027373
313
Hexamethylenediamine, A/,A/'-dibutyl-
4835-11-4
DTXSID6038823
500
500
Hexamethylene-1,6-diisocyanate
822-06-0
DTXSID4024143
100
313-N120
Hexamethylphosphoramide
680-31-9
DTXSID6020694
1
313
Hexane
110-54-3
DTXSID0021917
5,000
X
For Reference Only
37
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
CAS Number/
CAA
CWA
EPCRA
313 Category
112(r)(7)
CERCLA
311 (j)(5)
EPCRA 302
304 EHS
EPCRA
RCRA
Name
Codes
Comptox
TQ
HS RQ
HS TQ
EHS TPQ
RQ
313 TRI
Code
Hexane, 1,6-diisocyanato-,
homopolymer, y-io-perfluoro-C6-20-alc.-
blocked
135228-60-3
DTXSID60881892
313
n-Hexane
110-54-3
DTXSID0021917
5,000
313
1 -Hexanesulfonamide,
1,1,2,2,3,3,4,4,5,5,6,6,6-tridecafluoro-N-
(2- hydroxyethyl)-N-methyl-
68555-75-9
DTXSID1071664
313
1-Hexanesulfonic acid,
1,1,2,2,3,3,4,4,5,5,6,6,6-tridecafluoro-,
ammonium salt
68259-08-5
DTXSID3071353
313
1-Hexanesulfonic acid,
1,1,2,2,3,3,4,4,5,5,6,6,6-tridecafluoro-,
compd. with 2,2'-iminobis[ethanol] (1:1)
70225-16-0
DTXSID1072050
313
1-Hexanesulfonic acid,
1,1,2,2,3,3,4,4,5,5,6,6,6-tridecafluoro-,
potassium salt
3871-99-6
DTXSID3037709
313
Hexazinone
51235-04-2
DTXSID4024145
313
Hydramethylnon
67485-29-4
DTXSID6023868
313
Hydrazine
302-01-2
DTXSID3020702
15,000
1
1,000
1
313
U133
Hydrazine, 1,2-diethyl-
1615-80-1
DTXSID1043754
10
U086
Hydrazine, 1,1-dimethyl-
57-14-7
DTXSID1020516
15,000
10
1,000
10
X
U098
Hydrazine, 1,2-dimethyl-
540-73-8
DTXSID0041228
1
U099
Hydrazine, 1,2-diphenyl-
122-66-7
DTXSID7020710
10
X
U109
Hydrazine, methyl-
60-34-4
DTXSID4020874
15,000
10
500
10
X
P068
Hydrazine sulfate (1:1)
10034-93-2
DTXSID8020703
313
Hydrazobenzene
122-66-7
DTXSID7020710
10
X
U109
Hydrochloric acid
7647-01-0
DTXSID2020711
5,000
5,000,000
Hydrochloric acid (cone 37% or greater)
7647-01-0
DTXSID2020711
15,000
5,000
5,000,000
Hydrochloric acid (aerosol forms only)
7647-01-0
DTXSID2020711
5,000
5,000,000
313
Hydrocyanic acid
74-90-8
DTXSID9024148
2,500
10
10,000
100
10
X
P063
Hydrofluoric acid
7664-39-3
DTXSID1049641
100
100,000
100
100
X
U134
For Reference Only
38
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
CAS Number/
CAA
CWA
EPCRA
313 Category
112(r)(7)
CERCLA
311 (j)(5)
EPCRA 302
304 EHS
EPCRA
RCRA
Name
Codes
Comptox
TQ
HS RQ
HS TQ
EHS TPQ
RQ
313 TRI
Code
Hydrofluoric acid (conc. 50% or greater)
7664-39-3
DTXSID1049641
1,000
100
100,000
100
100
X
U134
Hydrogen
1333-74-0
DTXSID9029643
10,000
Hydrogen chloride (anhydrous)
7647-01-0
DTXSID2020711
5,000
5,000
5,000,000
500
5,000
X
Hydrogen chloride (gas only)
7647-01-0
DTXSID2020711
5,000
5,000
5,000,000
500
5,000
X
Hydrogen cyanide
74-90-8
DTXSID9024148
2,500
10
10,000
100
10
313
P063
Hydrogen fluoride
7664-39-3
DTXSID1049641
100
100,000
100
100
313
U134
Hydrogen fluoride (anhydrous)
7664-39-3
DTXSID1049641
1,000
100
100,000
100
100
X
U134
Hydrogen peroxide (Conc.> 52%)
7722-84-1
DTXSID2020715
1,000
1,000
Hydrogen selenide
7783-07-5
DTXSID20872822
500
10
10
313c
Hydrogen sulfide
7783-06-4
DTXSID4024149
10,000
100
100,000
500
100
313
U135
Hydroperoxide, 1 -methyl-1 -phenylethyl-
80-15-9
DTXSID3024869
10
X
U096
Hydroquinone
123-31-9
DTXSID7020716
100
500/10,000
100
313
N-Hydroxyethylethylenediamine
111-41-1
DTXSID7025423
313
Imazalil
35554-44-0
DTXSID8024151
313
lndeno[1,2,3-cd]pyrene
193-39-5
DTXSID8024153
100
313-N590
U137
3-lodo-2-propynyl butylcarbamate
55406-53-6
DTXSID0028038
313
Iron carbonyl (Fe(CO)5), (TB-5-11)-
13463-40-6
DTXSID3027746
2,500
100
100
X
Iron, pentacarbonyl-
13463-40-6
DTXSID3027746
2,500
100
100
313
Isobenzan
297-78-9
DTXSID3021306
100/10,000
100
Isobutane
75-28-5
DTXSID1026401
10,000
Isobutyl alcohol
78-83-1
DTXSID0021759
5,000
U140
Isobutyraldehyde
78-84-2
DTXSID9021635
313
Isobutyronitrile
78-82-0
DTXSID5026461
20,000
1,000
1,000
Isocyanic acid, 3,4-dichlorophenyl ester
102-36-3
DTXSID9033008
500/10,000
500
Isodrin
465-73-6
DTXSID7042065
1
100/10,000
1
313
P060
Isofenphos
25311-71-1
DTXSID8032417
313
Isofluorphate
55-91-4
DTXSID1040667
100
100
100
P043
1 H-lsoindole-1,3(2H)-dione, 3a,4,7,7a-
tetrahydro-2-[(trichloromethyl)thio]-
133-06-2
DTXSID9020243
10
10,000
X
Isononylphenol
11066-49-2
DTXSID60872987
313-N530
For Reference Only
39
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
4-lsononylphenol
26543-97-5
DTXSID60274048
313-N530
Isopentane
78-78-4
DTXSID8025468
10,000
Isophorone
78-59-1
DTXSID8020759
5,000
Isophorone diisocyanate
4098-71-9
DTXSID0023826
500
500
313-N120
Isoprene
78-79-5
DTXSID2020761
10,000
100
100,000
313
Isopropanolamine dodecylbenzene
sulfonate
42504-46-1
DTXSID0049650
1,000
1,000,000
Isopropyl alcohol (mfg-strong acid
process)
67-63-0
DTXSID7020762
313
Isopropylamine
75-31-0
DTXSID2025682
10,000
Isopropyl chloride
75-29-6
DTXSID6047739
10,000
Isopropyl chloroformate
108-23-6
DTXSID7026786
15,000
1,000
1,000
4,4'-lsopropylidenediphenol
80-05-7
DTXSID7020182
313
Isopropylmethylpyrazolyl
dimethylcarbamate
119-38-0
DTXSID2020765
100
500
100
P192
Isosafrole
120-58-1
DTXSID2020767
100
313
U141
I soth i ocya n ato meth a n e
556-61-6
DTXSID2027204
500
500
X
Kepone
143-50-0
DTXSID1020770
1
1,000
U142
Lactofen
77501-63-4
DTXSID7024160
313
Lactonitrile
78-97-7
DTXSID6025432
1,000
1,000
Lasiocarpine
303-34-4
DTXSID1020772
10
U143
Lead ||
7439-92-1
DTXSID2024161
10
313
Lead acetate
301-04-2
DTXSID6020773
10
10,000
313c
U144
Lead arsenate
7645-25-2
DTXSID80273932
1
1,000
313c
Lead arsenate
7784-40-9
DTXSID4042092
1
1,000
313c
Lead arsenate
10102-48-4
DTXSID7064944
1
1,000
313c
Lead chloride
7758-95-4
DTXSID1041059
10
10,000
313c
Lead Compounds
N420
DTXSID601336458
&
313
Lead fluoborate
13814-96-5
DTXSID9065651
10
10,000
313c
Lead fluoride
7783-46-2
DTXSID901014471
10
10,000
313c
Lead iodide
10101-63-0
DTXSID101014310
10
10,000
313c
Lead nitrate
10099-74-8
DTXSID2035069
10
10,000
313c
For Reference Only
40
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Lead phosphate
7446-27-7
DTXS ID5064706
10
313c
U145
Lead stearate
1072-35-1
DTXSID0029630
10
10,000
313c
Lead stearate
7428-48-0
DTXSID101011011
10
10,000
313c
Lead stearate
56189-09-4
DTXSID501014962
10
313C
Lead subacetate
1335-32-6
DTXSID1020774
10
313c
U146
Lead sulfate
7446-14-2
DTXSID50883502
10
10,000
313c
Lead sulfate
15739-80-7
DTXSID801010971
10
313c
Lead sulfide
1314-87-0
DTXSID0025498
10
10,000
313c
Lead thiocyanate
592-87-0
DTXSID90890513
10
10,000
313c
Leptophos
21609-90-5
DTXSID3040279
500/10,000
500
Lewisite
541-25-3
DTXSID3060245
10
10
Lindane
58-89-9
DTXSID2020686
1
1,000
1,000/10,000
1
313
U129
Linuron
330-55-2
DTXSID2024163
313
Lithium bis[(trifluoromethyl)sulfonyl]
azanide
90076-65-6
DTXSID8044468
313
Lithium carbonate
554-13-2
DTXS ID 1023784
313
Lithium chromate
14307-35-8
DTXSID8065749
10
10,000
313c
Lithium hydride
7580-67-8
DTXSID80893078
100
100
Lithium (perfluorooctane)sulfonate
29457-72-5
DTXSID2032421
313
Malathion
121-75-5
DTXSID4020791
100
100,000
313
Maleic acid
110-16-7
DTXSID8021517
5,000
5,000,000
Maleic anhydride
108-31-6
DTXSID7024166
5,000
5,000,000
313
U147
Maleic hydrazide
123-33-1
DTXSID9020792
5,000
U148
Malononitrile
109-77-3
DTXSID6021907
1,000
500/10,000
1,000
313
U149
Maneb
12427-38-2
DTXSID9020794
313
Manganese
7439-96-5
DTXSID2024169
313
Manganese,
bis(dimethylcarbamodithioato-S,S')-
15339-36-3
DTXSID4058316
10
313c
P196
Manganese Compounds
N450
DTXSID301336459
&
313
Manganese, tricarbonyl
methylcyclopentadienyl
12108-13-3
DTXSID9027738
100
100
313c
MBOCA
101-14-4
DTXSID5020865
10
X
U158
For Reference Only
41
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
MCPA
94-74-6
DTXSID4024195
X
MDI
101-68-8
DTXSID7025180
5,000
X
Mechlorethamine
51-75-2
DTXSID2020975
10
10
X
Mecoprop
93-65-2
DTXSID9024194
313
Melphalan
148-82-3
DTXSID6020804
1
U150
Mephosfolan
950-10-7
DTXSID0058221
500
500
2-M e rca pto be nzoth i azo le
149-30-4
DTXSID1020807
313
Mercaptodimethur(8)
2032-65-7
DTXSID3032626
10
10,000
500/10,000
10
X
P199
Mercuric acetate
1600-27-7
DTXSID4042123
500/10,000
500
313c
Mercuric chloride
7487-94-7
DTXSID5020811
500/10,000
500
313c
Mercuric cyanide
592-04-1
DTXSID3060457
1
1,000
313c
Mercuric nitrate
10045-94-0
DTXSID9044162
10
10,000
313c
Mercuric oxide
21908-53-2
DTXSID4042125
500/10,000
500
313c
Mercuric sulfate
7783-35-9
DTXSID7064819
10
10,000
313c
Mercuric thiocyanate
592-85-8
DTXSID7060469
10
10,000
313c
Mercurous nitrate
7782-86-7
DTXSID30872515
10
10,000
313c
Mercurous nitrate
10415-75-5
DTXSID0065066
10
10,000
313c
Mercury
7439-97-6
DTXSID1024172
1
313
U151
Mercury Compounds
N458
DTXSID601336460
&
313
Mercury fulminate
628-86-4
DTXSID40893599
10
313c
P065
Merphos
150-50-5
DTXSID6024173
313
Methacrolein diacetate
10476-95-6
DTXSID70864277
1,000
1,000
Methacrylic anhydride
760-93-0
DTXSID60862404
500
500
Methacrylonitrile
126-98-7
DTXSID1024176
10,000
1,000
500
1,000
313
U152
Methacryloyl chloride
920-46-7
DTXSID6061280
100
100
Methacryloyloxyethyl isocyanate
30674-80-7
DTXSID6051986
100
100
Methamidophos
10265-92-6
DTXSID6024177
100/10,000
100
Metham sodium
137-42-8
DTXSID2029167
313
Methanamine
74-89-5
DTXSID7025683
10,000
100
100,000
Methanamine, N,N-dimethyl-
75-50-3
DTXSID2026238
10,000
100
100,000
Methanamine, A/-methyl-
124-40-3
DTXSID5024057
10,000
1,000
1,000,000
X
U092
For Reference Only
42
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Methanamine, A/-methyl-A/-nitroso-
62-75-9
DTXSID7021029
10
1,000
10
X
P082
Methane
74-82-8
DTXSID8025545
10,000
Methane, chloro-
74-87-3
DTXSID0021541
10,000
100
X
U045
Methane, chloromethoxy-
107-30-2
DTXSID6020307
5,000
10
100
10
X
U046
Methane, isocyanato-
624-83-9
DTXSID1023786
10,000
10
500
10
X
P064
Methane, oxybis-
115-10-6
DTXSID8026937
10,000
Methane, oxybis[chloro-
542-88-1
DTXSID8020173
1,000
10
100
10
X
P016
Methanesulfenyl chloride, trichloro-
594-42-3
DTXSID6025854
10,000
100
500
100
X
1,1,1-Trifluoro-N-
[(trifluoromethyl)sulfonyl]
methanesulfonamide
82113-65-3
DTXSID2045026
313
Methanesulfonyl fluoride
558-25-8
DTXSID8060329
1,000
1,000
Methane, tetranitro-
509-14-8
DTXSID5021334
10,000
10
500
10
P112
Methanethiol
74-93-1
DTXSID5026382
10,000
100
100,000
500
100
X
U153
Methane, trichloro-
67-66-3
DTXSID1020306
20,000
10
10,000
10,000
10
X
U044
4,7-Methanoindan, 1,2,3,4,5,6,7,8,8-
octachloro-2,3,3a,4,7,7a-hexahydro-
57-74-9
DTXSID7020267
1
1,000
1,000
1
X
U036
Methanol
67-56-1
DTXSID2021731
5,000
313
U154
Methapyrilene
91-80-5
DTXSID2023278
5,000
U155
Methazole
20354-26-1
DTXSID1040293
313
Methidathion
950-37-8
DTXSID5020819
500/10,000
500
Methiocarb
2032-65-7
DTXSID3032626
10
10,000
500/10,000
10
313
P199
Methomyl
16752-77-5
DTXSID1022267
100
500/10,000
100
P066
Methoxone
94-74-6
DTXSID4024195
313
Methoxone sodium salt
3653-48-3
DTXSID2034700
313
Methoxychlor
72-43-5
DTXSID9020827
1
1,000
313
U247
2-Methoxyethanol
109-86-4
DTXSID5024182
313
Methoxyethylmercuric acetate
151-38-2
DTXSID4058314
500/10,000
500
313c
Methyl acrylate
96-33-3
DTXSID0024183
313
Methyl bromide
74-83-9
DTXSID8020832
1,000
1,000
1,000
X
U029
2-Methyl-1-butene
563-46-2
DTXSID3052224
10,000
3-Methyl-1-butene
563-45-1
DTXSID7060336
10,000
For Reference Only
43
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
CAS Number/
CAA
CWA
EPCRA
313 Category
112(r)(7)
CERCLA
311 (j)(5)
EPCRA 302
304 EHS
EPCRA
RCRA
Name
Codes
Comptox
TQ
HS RQ
HS TQ
EHS TPQ
RQ
313 TRI
Code
Methyl chloride
74-87-3
DTXSID0021541
10,000
100
X
U045
Methyl 2-chloroacrylate
80-63-7
DTXSID4025585
500
500
Methyl chlorocarbonate
79-22-1
DTXSID0024185
5,000
1,000
500
1,000
313
U156
Methyl chloroform
71-55-6
DTXSID0021381
1,000
X
U226
Methyl chloroformate
79-22-1
DTXSID0024185
5,000
1,000
500
1,000
X
U156
3-Methylcholanthrene
56-49-5
DTXSID0020862
10
313-N590
U157
5-Methylchrysene
3697-24-3
DTXSID6063143
313-N590
4-Methyldiphenylmethane-3,4-
diisocyanate
75790-84-0
DTXSID7072830
313-N120
4,4'-Methylenebis(2-chloroaniline)
101-14-4
DTXSID5020865
10
313
U158
4,4'-Methylenebis(A/,A/-
dimethyl)benzenamine
101-61-1
DTXSID5020869
313
1,1'-Methylene bis(4-
isocyanatocyclohexane)
5124-30-1
DTXSID3027588
313-N120
Methylenebis(phenylisocyanate)
101-68-8
DTXSID7025180
5,000
X
Methylene bromide
74-95-3
DTXSID4021557
1,000
313
U068
Methylene chloride
75-09-2
DTXSID0020868
1,000
X
U080
4,4'-Methylenedianiline
101-77-9
DTXSID6022422
10
313
4,4'-Methylenedi(phenyl isocyanate)
101-68-8
DTXSID7025180
5,000
313-N120
Methyl ether
115-10-6
DTXSID8026937
10,000
Methyl ethyl ketone
78-93-3
DTXSID3021516
5,000
U159
Methyl ethyl ketone peroxide
1338-23-4
DTXSID1024671
10
U160
Methyleugenol
93-15-2
DTXSID5025607
313
Methyl formate
107-31-3
DTXSID5025609
10,000
Methyl hydrazine
60-34-4
DTXSID4020874
15,000
10
500
10
313
P068
Methyl iodide
74-88-4
DTXSID0024187
100
313
U138
Methyl isobutyl ketone
108-10-1
DTXSID5021889
5,000
313
U161
Methyl isocyanate
624-83-9
DTXSID1023786
10,000
10
500
10
313
P064
Methyl isothiocyanate
556-61-6
DTXSID2027204
500
500
313
2-Methyllactonitrile
75-86-5
DTXSID7025427
10
10,000
1,000
10
313
P069
Methyl mercaptan
74-93-1
DTXSID5026382
10,000
100
100,000
500
100
313s
U153
Methylmercuric dicyanamide
502-39-6
DTXSID8040309
500/10,000
500
313c
For Reference Only
44
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Methyl methacrylate
80-62-6
DTXSID2020844
1,000
1,000,000
313
U162
A/-Methylolacrylamide
924-42-5
DTXSID3020885
313
Methyl parathion
298-00-0
DTXSID1020855
100
100,000
100/10,000
100
313
P071
Methyl perfluorooctanoate
376-27-2
DTXSID8059924
313
Methyl phenkapton
3735-23-7
DTXSID6042153
500
500
Methyl phosphonic dichloride
676-97-1
DTXSID6060979
100
100
2-Methylpropene
115-11-7
DTXSID9020748
10,000
2-Methylpyridine
109-06-8
DTXSID9021899
5,000
313
U191
A/-Methyl-2-pyrrolidone
872-50-4
DTXSID6020856
313
Methyl tert-butyl ether
1634-04-4
DTXSID3020833
1,000
313
Methyl thiocyanate
556-64-9
DTXSID5060304
20,000
10,000
10,000
Methylthiouracil
56-04-2
DTXSID2020890
10
U164
Methyltrichlorosilane
75-79-6
DTXSID4026426
5,000
500
500
Methyl vinyl ketone
78-94-4
DTXSID3025671
10
10
Metiram
9006-42-2
DTXSID9034737
313
Metolcarb
1129-41-5
DTXSID8057938
1,000
100/10,000
1000
P190
Metribuzin
21087-64-9
DTXSID6024204
313
Mevinphos
7786-34-7
DTXSID2032683
10
10,000
500
10
313
Mexacarbate
315-18-4
DTXSID7020893
1,000
1,000,000
500/10,000
1,000
P128
Michler's ketone
90-94-8
DTXSID2020894
313
Mitomycin C
50-07-7
DTXSID2020898
10
500/10,000
10
U010
Molinate
2212-67-1
DTXSID6024206
313
Molybdenum trioxide
1313-27-5
DTXSID7020899
313
Monochloropentafluoroethane
76-15-3
DTXSID3026435
313
Monocrotophos
6923-22-4
DTXSID9034816
10/10,000
10
Monoethylamine
75-04-7
DTXSID8025678
10,000
100
100,000
Monomethylamine
74-89-5
DTXSID7025683
10,000
100
100,000
Monuron
150-68-5
DTXSID0020311
313
Muscimol
2763-96-4
DTXSID5041069
1,000
500/10,000
1,000
P007
Mustard gas
505-60-2
DTXSID0037100
500
500
313
Myclobutanil
88671-89-0
DTXSID8024315
313
For Reference Only
45
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Nabam
142-59-6
DTXSID5020603
313
Naled
300-76-5
DTXSID1024209
10
10,000
313
Naphthalene
91-20-3
DTXSID8020913
100
100,000
313
U165
1,5-Naphthalene diisocyanate
3173-72-6
DTXSID8040145
313-N120
1-Naphthalenol, methylcarbamate
63-25-2
DTXSID9020247
100
100,000
X
U279
Naphthenic acid
1338-24-5
DTXSID1027394
100
100,000
1,4-Naphthoquinone
130-15-4
DTXS ID5040704
5,000
U166
alpha -Naphthylamine
134-32-7
DTXSID7020920
100
313
U167
Jbefa-Naphthylamine
91-59-8
DTXSID2020921
10
313
U168
Nickel It
7440-02-0
DTXSID2020925
100
313
Nickel Compounds
N495
DTXSID301336461
&
313
Nickel ammonium sulfate
15699-18-0
DTXSID20890763
100
100,000
313c
Nickel carbonyl
13463-39-3
DTXSID0024212
1,000
10
1
10
313c
P073
Nickel chloride
7718-54-9
DTXSID7040316
100
100,000
313c
Nickel chloride
37211-05-5
DTXSID601023225
100
100,000
313c
Nickel cyanide
557-19-7
DTXSID60971065
10
313c
P074
Nickel hydroxide
12054-48-7
DTXSID90274011
10
10,000
313c
Nickel nitrate
14216-75-2
DTXS ID 101015049
100
100,000
313c
Nickel sulfate
7786-81-4
DTXSID6023787
100
100,000
313c
Nicotine
54-11-5
DTXSID1020930
100
100
100
313c
P075
Nicotine and salts
54-11-5
DTXSID1020930
100
313c
P075
Nicotine and salts
N503
DTXSID701336463
313
Nicotine sulfate
65-30-5
DTXSID8021725
100
100/10,000
100
313c
Nitrapyrin
1929-82-4
DTXSID0024216
313
Nitrate compounds (water dissociable)
N511
DTXSID001336505
313
Nitric acid
7697-37-2
DTXSID5029685
1,000
1,000,000
1,000
1,000
313
Nitric acid (cone 80% or greater)
7697-37-2
DTXSID5029685
15,000
1,000
1,000,000
1,000
1,000
X
Nitric oxide
10102-43-9
DTXSID1020938
10,000
10 @
100
10
P076
Nitrilotriacetic acid
139-13-9
DTXSID6020939
313
Nitrilotriacetic acid trisodium salt
5064-31-3
DTXSID8027587
313
p-Nitroaniline
100-01-6
DTXSID8020961
5,000
313
P077
For Reference Only
46
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
5-Nitro-o -anisidine
99-59-2
DTXSID0020943
313
o-Nitroanisole
91-23-6
DTXSID3020962
313
Nitrobenzene
98-95-3
DTXSID3020964
1,000
1,000,000
10,000
1,000
313
U169
4-Nitrobiphenyl
92-93-3
DTXSID9041522
10
313
6-Nitrochrysene
7496-02-8
DTXSID9075454
313-N590
Nitrocyclohexane
1122-60-7
DTXSID6061529
500
500
Nitrofen
1836-75-5
DTXSID7020970
313
Nitrogen dioxide
10102-44-0
DTXSID7020974
10 @
10,000
100
10
P078
Nitrogen dioxide
10544-72-6
DTXSID00893116
10 @
Nitrogen mustard
51-75-2
DTXSID2020975
10
10
313
Nitrogen oxide (NO)
10102-43-9
DTXSID1020938
10,000
10 @
100
10
P076
Nitroglycerin
55-63-0
DTXSID1021407
10
313
P081
Nitromethane
75-52-5
DTXSID2020977
313
Nitrophenol (mixed isomers)
25154-55-6
DTXSID201023223
100
100,000
2-Nitrophenol
88-75-5
DTXSID1021790
100
100,000i
313
4-Nitrophenol
100-02-7
DTXSID0021834
100
100,000i
313
U170
m -Nitrophenol
554-84-7
DTXSID2025765
100
100,000i
p-Nitrophenol
100-02-7
DTXSID0021834
100
100,000i
X
U170
Nitrophenols
25154-55-6
DTXSID201023223
&
100,000
2-Nitropropane
79-46-9
DTXSID6020981
10
313
U171
1-Nitropyrene
5522-43-0
DTXSID6020983
313-N590
4-Nitropyrene
57835-92-4
DTXS ID5074844
313-N590
Nitrosamines
N.A.
DTXSID2074037
&
A/-Nitrosodi-n -butylamine
924-16-3
DTXSID2021026
10
313
U172
A/-Nitrosodiethanolamine
1116-54-7
DTXSID7021027
1
U173
A/-Nitrosodiethylamine
55-18-5
DTXSID2021028
1
313
U174
A/-Nitrosodimethylamine
62-75-9
DTXSID7021029
10
1,000
10
313
P082
Nitrosodimethylamine
62-75-9
DTXSID7021029
10
1,000
10
X
P082
A/-Nitrosodiphenylamine
86-30-6
DTXSID6021030
100
313
p-Nitrosodiphenylamine
156-10-5
DTXS ID 1021031
313
A/-Nitrosodi-n -propylamine
621-64-7
DTXSID6021032
10
313
U111
For Reference Only
47
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
A/-Nitroso-A/-ethylurea
759-73-9
DTXSID8020593
1
313
U176
A/-Nitroso-A/-methylurea
684-93-5
DTXSID4021006
1
313
U177
A/-Nitroso-A/-methylurethane
615-53-2
DTXSID4021472
1
U178
A/-Nitrosomethylvinylamine
4549-40-0
DTXSID3042211
10
313
P084
A/-Nitrosomorpholine
59-89-2
DTXSID4021056
1
313
A/-Nitrosonornicotine
16543-55-8
DTXSID4021476
313
A/-Nitrosopiperidine
100-75-4
DTXSID8021060
10
313
U179
A/-Nitrosopyrrolidine
930-55-2
DTXSID8021062
1
U180
Nitrotoluene
1321-12-6
DTXSID901010229
1,000
1,000,000
m-Nitrotoluene
99-08-1
DTXSID5021831
1,000
1,000,000i
o-Nitrotoluene
88-72-2
DTXSID4025791
1,000
1,000,000i
313
p-Nitrotoluene
99-99-0
DTXSID5023792
1,000
1,000,000i
5-Nitro-o-toluidine
99-55-8
DTXSID4020959
100
313
U181
Nitrous acid, ethyl ester
109-95-5
DTXSID9046574
10,000
1-Nonanesulfonic acid,
1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,9-
nonadecafluoro-, ammonium salt
17202-41-4
DTXSID9066174
313
3,6,9,12,15,18,21,24,27-
Nonaoxanonacosan-1-ol, 29-
(nonylphenoxy)-
27177-08-8
DTXSID90858779
313-N535
Nonylphenol (includes only 6
chemicals)
N530
DTXSID301336504
313
Nonylphenol
25154-52-3
DTXSID3021857
313-N530
Nonylphenol, branched
90481-04-2
DTXSID60891517
313-N530
4-Nonylphenol
104-40-5
DTXSID5033836
313-N530
4-Nonylphenol, branched
84852-15-3
DTXSID5029055
313-N530
Nonylphenol Ethoxylates
N535
DTXSID701336506
313
Norbormide
991-42-4
DTXSID8042216
100/10,000
100
Norflurazon
27314-13-2
DTXSID8024234
313
1,2,3,4,6,7,8,9-octachlorodibenzo-p -
dioxin
3268-87-9
DTXSID4025799
313-N150
1,2,3,4,6,7,8,9-octachlorodibenzofuran
39001-02-0
DTXSID3052062
313-N150
Octachloronaphthalene
2234-13-1
DTXSID6025800
313
For Reference Only
48
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Octachlorostyrene
29082-74-4
DTXSID2021074
313
Octadecanoic acid, pentatriacontafluoro
16517-11-6
DTXSID1066071
313
1-Octadecanol,
3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,
12,12,13,13,14,14,15,15,16,16,17,17,1
8,18,18-tritriacontafluoro-
65104-67-8
DTXSID6070221
313
1-Octanesulfonamide, N-butyl-
1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-
heptadecafluoro-N-(2-hydroxyethyl)-
132831
DTXSID7062295
313
1-Octanesulfonamide, N-[3-
(dimethyloxidoamino)propyl]-
1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-
heptadecafluoro-, potassium salt
178094-69-4
DTXSID90881345
313
1-Octanesulfonamide, N-ethyl-
1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-
heptadecafluoro-N-[2-
(phosphonooxy)ethyl]-, diammonium
salt
67969-69-1
DTXSID7070925
313
1-Octanesulfonamide, N-ethyl-
1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-
heptadecafluoro-N-[3-
(tri meth oxysi ly I) pro py I] -
61660-12-6
DTXSID8069484
313
1-Octanesulfonic acid,
1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-
heptadecafluoro-, ammonium salt
29081-56-9
DTXSID9067435
313c
1 -Octanesulfonamide,
1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-
heptadecafluoro-N-(2-hydroxyethyl)-N-
methyl-
24448-09-7
DTXSID7027831
313
1 -Octanesulfonamide,
1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-
heptadecafluoro-N-methyl-
31506-32-8
DTXSID1067629
313
For Reference Only
49
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
CAS Number/
CAA
CWA
EPCRA
313 Category
112(r)(7)
CERCLA
311 (j)(5)
EPCRA 302
304 EHS
EPCRA
RCRA
Name
Codes
Comptox
TQ
HS RQ
HS TQ
EHS TPQ
RQ
313 TRI
Code
1-Octanesulfonic acid,
1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-
heptadecafluoro-, compd. with 2,2'-
iminobis[ethanol] (1:1)
70225-14-8
DTXSID2072049
313
Octanoyl fluoride, pentadecafluoro-
335-66-0
DTXSID0059829
313
3,6,9,12,15,18,21,24-
Octaoxahexacosan-1-ol, 26-
(nonylphenoxy)-
26571-11-9
DTXSID901014740
313-N535
Oleum (fuming sulfuric acid)
8014-95-7
DTXSID5064889
10,000
1,000
Organorhodium Complex (PMN-82-147)
N.A.
PMN
10,10,000
10
Oryzalin
19044-88-3
DTXSID8024238
313
Osmium oxide 0s04 (T-4)-
20816-12-0
DTXSID5042245
1,000
X
P087
Osmium tetroxide
20816-12-0
DTXSID5042245
1,000
313
P087
Ouabain
630-60-4
DTXSID0043765
100/10,000
100
Oxamyl
23135-22-0
DTXSID6021086
100
100/10,000
100
P194
Oxetane, 3,3-bis(chloromethyl)-
78-71-7
DTXSID9058816
500
500
Oxirane
75-21-8
DTXSID0020600
10,000
10
1,000
10
X
U115
Oxirane, (chloromethyl)-
106-89-8
DTXSID1020566
20,000
100
100,000
1,000
100
X
U041
Oxirane, methyl-
75-56-9
DTXSID5021207
10,000
100
100,000
10,000
100
X
Oxydemeton-methyl
301-12-2
DTXSID8025541
313
Oxydiazon
19666-30-9
DTXSID3024239
313
Oxydisulfoton
2497-07-6
DTXSID4037536
500
500
Oxyfluorfen
42874-03-3
DTXSID7024241
313
Ozone
10028-15-6
DTXSID0021098
100
100
313
Paraformaldehyde
30525-89-4
DTXSID8034798
1,000
1,000,000
Paraldehyde
123-63-7
DTXSID9023419
1,000
313
U182
Paraquat dichloride
1910-42-5
DTXSID7024243
10/10,000
10
313
Paraquat methosulfate
2074-50-2
DTXSID7034202
10/10,000
10
Parathion
56-38-2
DTXSID7021100
10
10,000
100
10
313
P089
Parathion-methyl
298-00-0
DTXSID1020855
100
100,000
100/10,000
100
X
P071
Paris green
12002-03-8
DTXSID0024846
1
1,000
500/10,000
1
For Reference Only
50
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
CAS Number/
CAA
CWA
EPCRA
313 Category
112(r)(7)
CERCLA
311 (j)(5)
EPCRA 302
304 EHS
EPCRA
RCRA
Name
Codes
Comptox
TQ
HS RQ
HS TQ
EHS TPQ
RQ
313 TRI
Code
PCBs
1336-36-3
DTXSID5024267
1
1,000
X
PCNB
82-68-8
DTXSID2021105
100
X
U185
PCP
87-86-5
DTXSID7021106
10
10,000
X
Pebulate
1114-71-2
DTXSID8021199
313
Pendimethalin
40487-42-1
DTXSID7024245
313
Pentaborane
19624-22-7
DTXSID10880057
500
500
Pentachlorobenzene
608-93-5
DTXSID7024247
10
313
U183
1,2,3,7,8-pentachlorodibenzo-p-dioxin
40321-76-4
DTXSID7052078
313-N150
1,2,3,7,8-pentachlorodibenzofuran
57117-41-6
DTXSID7052234
313-N150
2,3,4,7,8-pentachlorodibenzofuran
57117-31-4
DTXSID7030066
313-N150
Pentachloroethane
76-01-7
DTXSID7021104
10
313
U184
Pentachloronitrobenzene
82-68-8
DTXSID2021105
100
X
U185
Pentachlorophenol
87-86-5
DTXSID7021106
10
10,000
313
Pentadecylamine
2570-26-5
DTXSID8062529
100/10,000
100
1,3-Pentadiene
504-60-9
DTXSID3027160
10,000
100
U186
Pentane
109-66-0
DTXSID2025846
10,000
1 -Pentanesulfonamide,
1,1,2,2,3,3,4,4,5,5,5-undecafluoro-N-(2-
hyd roxyethy l)-N-methyl-
68555-74-8
DTXSID6071663
313
1-Pentanesulfonic acid,
1,1,2,2,3,3,4,4,5,5,5-undecafluoro-,
ammonium salt
68259-09-6
DTXSID8071354
313
1-Pentanesulfonic acid,
1,1,2,2,3,3,4,4,5,5,5-undecafluoro-,
compd. with 2,2'-iminobis[ethanol] (1:1)
70225-17-1
DTXSID6072051
313
1-Pentanesulfonic acid,
1,1,2,2,3,3,4,4,5,5,5-undecafluoro-,
potassium salt
3872-25-1
DTXSID2063214
313
Pentanoic acid, 4,4-bis[(y-to-perfluoro-
C8-20-alkyl)thio] derivs.
71608-60-1
DTXSID20881919
313
1-Pentene
109-67-1
DTXSID7025849
10,000
2-Pentene, (E)-
646-04-8
DTXSID50891268
10,000
For Reference Only
51
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
2-Pentene, (Z)-
627-20-3
DTXSID10891269
10,000
Pentobarbital sodium
57-33-0
DTXSID9021712
313
Peracetic acid
79-21-0
DTXSID1025853
10,000
500
500
313
Perchloroethylene
127-18-4
DTXSID2021319
100
X
U210
Perchloromethyl mercaptan
594-42-3
DTXSID6025854
10,000
100
500
100
313
Perfluoro-3-methoxypropanoic acid
377-73-1
DTXSID70191136
313
Perfluorobutanesulfonate
45187-15-3
DTXSID60873015
313
Perfluorobutane sulfonic acid
375-73-5
DTXSID5030030
313
Perfluorobutanoate
45048-62-2
DTXSID80892480
313
Perfluorobutanoic acid
375-22-4
DTXSID4059916
313
Perfluorodecanoic acid
335-76-2
DTXSID3031860
313
Perfluorododecanoic acid
307-55-1
DTXSID8031861
313
Perfluorohexanesulfonic acid
355-46-4
DTXSID7040150
313
Perfluorohexanoic acid
307-24-4
DTXSID3031862
313
Perfluorononanoic acid
375-95-1
DTXSID8031863
313
Perfluorooctanesulfonic acid
1763-23-1
DTXSID3031864
1
313
Perfluorooctanesulfonic acid, salts, &
structural isomers
N.A.
DTXSID3031864
1
Perfluorooctanoic acid
335-67-1
DTXSID8031865
1
313
Perfluorooctanoic acid, salts, &
structural isomers
N.A.
DTXSID3031864
1
Perfluorooctyl Ethylene
21652-58-4
DTXSID7074616
313
Perfluorooctyl iodide
507-63-1
DTXSID0060147
313
Perfluorooctylsulfonyl fluoride
307-35-7
DTXSID5027140
313
Perfluoropalmitic acid
67905-19-5
DTXS ID 1070800
313
Perfluoropropanoic acid
422-64-0
DTXSID8059970
313
Perfluorotetradecanoic acid
376-06-7
DTXSID3059921
313
Permethrin
52645-53-1
DTXSID8022292
313
Phenacetin
62-44-2
DTXSID1021116
100
U187
Phenanthrene
85-01-8
DTXSID6024254
5,000
313
Phenol
108-95-2
DTXSID5021124
1,000
1,000,000
500/10,000
1,000
313
U188
For Reference Only
52
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
CAS Number/
CAA
CWA
EPCRA
313 Category
112(r)(7)
CERCLA
311 (j)(5)
EPCRA 302
304 EHS
EPCRA
RCRA
Name
Codes
Comptox
TQ
HS RQ
HS TQ
EHS TPQ
RQ
313 TRI
Code
Phenol, 2-(1-methylethoxy)-,
methylcarbamate
114-26-1
DTXSID7021948
100
X
U411
Phenol, 3-(1-methylethyl)-,
methylcarbamate
64-00-6
DTXSID1040324
10
500/10,000
10
P202
Phenolphthalein
77-09-8
DTXSID0021125
313
Phenol, 2,2'-thiobis[4-chloro-6-methyl-
4418-66-0
DTXSID1041768
100/10,000
100
Phenothrin
26002-80-2
DTXSID7032688
313
Phenoxarsine, 10,10-oxydi-
58-36-6
DTXSID0032443
500/10,000
500
313c
Phenyl dichloroarsine
696-28-6
DTXSID7061011
1
500
1
P036
p-Phenylenediamine
106-50-3
DTXSID9021138
5,000
313
1,2-Phenylenediamine
95-54-5
DTXSID3025881
313
1,3-Phenylenediamine
108-45-2
DTXSID4021137
313
1,2-Phenylenediamine dihydrochloride
615-28-1
DTXSID3021140
313
1,4-Phenylenediamine dihydrochloride
624-18-0
DTXSID8021141
313
1,3-Phenylene diisocyanate
123-61-5
DTXSID9044792
313-N120
1,4-Phenylene diisocyanate
104-49-4
DTXSID3025883
313-N120
Phenylhydrazine hydrochloride
59-88-1
DTXSID3021148
1,000/10,000
1,000
Phenylmercuric acetate
62-38-4
DTXSID7021150
100
500/10,000
100
313c
P092
Phenylmercury acetate
62-38-4
DTXSID7021150
100
500/10,000
100
313c
P092
2-Phenylphenol
90-43-7
DTXSID2021151
313
Phenylsilatrane
2097-19-0
DTXSID1062176
100/10,000
100
Phenylthiourea
103-85-5
DTXSID9021134
100
100/10,000
100
P093
Phenytoin
57-41-0
DTXSID8020541
313
Ph orate
298-02-2
DTXSID4032459
10
10
10
P094
Phosacetim
4104-14-7
DTXSID5040330
100/10,000
100
Phosfolan
947-02-4
DTXSID1042285
100/10,000
100
Phosgene
75-44-5
DTXSID0024260
500
10
10,000
10
10
313
P095
Phosphamidon
13171-21-6
DTXSID7021156
100
100
Phosphine
7803-51-2
DTXSID2021157
5,000
100
500
100
313
P096
Phosphinic acid, bis(perfluoro-C6-12-
alkyl) derivs.
68412-69-1
DTXSID80881990
313
For Reference Only
53
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Phosphonic acid, perfluoro-C6-12-alkyl
derivs.
68412-68-0
DTXSID80882003
313
Phosphonic acid, (2,2,2-trichloro-1-
hydroxyethyl)-,dimethyl ester
52-68-6
DTXSID0021389
100
100,000
X
Phosphonothioic acid, methyl-, O-ethyl
0-(4-(methylthio)phenyl) ester
2703-13-1
DTXSID0042240
500
500
Phosphonothioic acid, methyl-, S-(2-
(bis(1 -methylethyl)amino)ethyl) O-ethyl
ester
50782-69-9
DTXSID80866161
100
100
Phosphonothioic acid, methyl-, 0-(4-
nitrophenyl) O-phenyl ester
2665-30-7
DTXSID7042225
500
500
Phosphoric acid
7664-38-2
DTXSID5024263
5,000
5,000,000
Phosphoric acid, 2-dichloroethenyl
dimethyl ester
62-73-7
DTXSID5020449
10
10,000
1,000
10
X
Phosphoric acid, dimethyl 4-(methylthio)
phenyl ester
3254-63-5
DTXSID00863137
500
500
Phosphoric acid, Y-w-perfluoro-C8-16-
alkyl esters, compds. with
diethanolamine
74499-44-8
DTXSID20881873
313
Phosphorodithioic acid O-ethyl S,S-
dipropyl ester
13194-48-4
DTXSID4032611
1,000
1,000
X
Phosphorothioic acid, 0,0-diethyl-0-(4-
nitrophenyl) ester
56-38-2
DTXSID7021100
10
10,000
100
10
X
P089
Phosphorothioic acid, 0,0-dimethyl-5-
(2-(methylthio)ethyl)ester
2587-90-8
DTXSID2041838
500
500
Phosphorous trichloride
7719-12-2
DTXSID5029687
15,000
1,000
1,000,000
1,000
1,000
Phosphorus
7723-14-0
DTXSID1024382
1
1,000
100
1
Phosphorus (yellow or white)
7723-14-0
DTXSID1024382
1,000
Phosphorus (yellow or white)
12185-10-3
DTXSID90923991
313
Phosphorus oxychloride
10025-87-3
DTXSID5029710
5,000
1,000
1,000,000
500
1,000
Phosphorus pentachloride
10026-13-8
DTXSID9033896
500
500
Phosphorus trichloride
7719-12-2
DTXSID5029687
15,000
1,000
1,000,000
1,000
1,000
Phosphoryl chloride
10025-87-3
DTXSID5029710
5,000
1,000
1,000,000
500
1,000
Phthalate Esters
N.A.
DTXSID20872968
&
Phthalic anhydride
85-44-9
DTXSID2021159
5,000
313
U190
For Reference Only
54
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Physostigmine
57-47-6
DTXSID3023471
100
100/10,000
100
P204
Physostigmine, salicylate (1:1)
57-64-7
DTXSID80883232
100
100/10,000
100
P188
Picloram
1918-02-1
DTXSID1021160
313
2-Picoline
109-06-8
DTXSID9021899
5,000
X
U191
Picric acid
88-89-1
DTXSID4025909
313
Picrotoxin
124-87-8
DTXSID7045605
500/10,000
500
Piperidine
110-89-4
DTXSID6021165
15,000
1,000
1,000
Piperonyl butoxide
51-03-6
DTXSID1021166
313
Pirimifos-ethyl
23505-41-1
DTXSID5042297
1,000
1,000
Pirimiphos-methyl
29232-93-7
DTXSID0024266
500/10,001
500
Plumbane, tetramethyl-
75-74-1
DTXSID0026123
10,000
100
100
Polybrominated Biphenyls (PBBs)
N575
DTXSID401336507
500
500
Polychlorinated alkanes (C10 to C13)
N583
DTXSID101336508
313
Polychlorinated biphenyls
1336-36-3
DTXSID5024267
1
1,000
313
Polycyclic aromatic compounds
(includes only 25 chemicals)
N590
DTXSID801336509
313
Polycyclic organic matter8
N.A.
DTXSID701351489
&
Poly(difluoromethylene), a-[2-
(acetyloxy)-3-
[(carboxymethyl)dimethylammonio]prop
yl]-w-fluoro-, inner salt
123171-68-6
DTXSID90882993
313
Poly(difluoromethylene), a-[2-[(2-
carboxyethyl)thio]ethyl]-io-fluoro-
65530-83-8
DTXSID40881855
313
Poly(difluoromethylene), a-[2-[(2-
carboxyethyl)thio]ethyl]-w-fluoro-,
lithium salt
65530-69-0
DTXSID90883086
313
Poly(difluoromethylene), a-fluoro-io-(2-
hydroxyethyl)-, dihydrogen 2-hydroxy-
1,2,3-propanetricarboxylate
65605-56-3
DTXSID00883012
313
Poly(difluoromethylene), a-fluoro-io-(2-
hydroxyethyl)-, hydrogen 2-hydroxy-
1,2,3-propanetricarboxylate
65605-57-4
DTXSID70883024
313
For Reference Only
55
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Poly(difluoromethylene), a-fluoro-io-(2-
hydroxyethyl)-, 2-hydroxy-1,2,3-
propanetricarboxylate (3:1)
65530-59-8
DTXSID50883042
313
Poly(difluoromethylene), a-fluoro-io-[2-
r(2-methyl-1-oxo-2-propenyl)oxylethyll-
65530-66-7
DTXSID7042302
313
Poly(difluoromethylene), a-fluoro-io-[2-
[(1 -oxooctadecyl)oxylethyll-
65530-65-6
DTXSID60881913
313
Poly(difluoromethylene), a-fluoro-io-[2-
[(1 -oxo-2-propenyl)oxy]ethyl]-,
homopolymer
65605-73-4
DTXSID00881856
313
Poly(difluoromethylene), a-fluoro-io-[2-
(phosphonooxy)ethyl]-
65530-61-2
DTXSID30881925
313
Poly(difluoromethylene), a-fluoro-io-[2-
(phosphonooxy)ethyl]-, ammonium salt
95144-12-0
DTXSID50881886
313
Poly(difluoromethylene), a-fluoro-io-[2-
(phosphonooxy)ethyl]-, diammonium
salt
65530-72-5
DTXSID00881876
313
Poly(difluoromethylene), a-fluoro-io-[2-
(phosphonooxy)ethyl]-,
monoammonium salt
65530-71-4
DTXSID70881863
313
Poly(difluoromethylene), a-fluoro-io-[2-
sulphoethyl)-
80010-37-3
DTXSID80881970
313
Poly(difluoromethylene), a,a'-
[phosphinicobis(oxy-2,1-
ethanediyl)]bis[io-fluoro-
65530-62-3
DTXSID70881843
313
Poly(difluoromethylene), a,a'-
[phosphinicobis(oxy-2,1-
ethanediyl)]bis[io-fluoro-, ammonium
salt
65530-70-3
DTXSID60883018
313
Polymeric diphenylmethane
diisocyanate
9016-87-9
DTXSID3047473
313-N120
Polynuclear Aromatic Hydrocarbons
N.A.
DTXSID3044043
&
Poly(oxy-1,2-ethanediyl), a-[2-
[ethyl[(heptadecafluorooctyl)sulfonyl]am
ino]ethyl]-io-hydroxy-
29117-08-6
DTXSID40897537
313
For Reference Only
56
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Poly(oxy-1,2-ethanediyl), a-[2-
[ethyl[(heptadecafluorooctyl)sulfonyl]am
ino]ethyl]-w-methoxy-
68958-61-2
DTXSID50883067
313
Poly(oxy-1,2-ethanediyl), a-[2-
[ethyl[(pentadecafluoroheptyl)sulfonyl]a
mino]ethyl]-w-hydroxy-
68298-81-7
DTXSID60882940
313
Poly(oxy-1,2-ethanediyl), a-[2-
[ethyl[(pentadecafluoroheptyl)sulfonyl]a
mino]ethyl]-io-methoxy-
68958-60-1
DTXSID90883061
313
Poly(oxy-1,2-ethanediyl), a-[2-
[ethyl[(tridecafluorohexyl)sulfonyl]amino
]ethyl]-io-hydroxy-
56372-23-7
DTXSID70897540
313
Poly(oxy-1,2-ethanediyl), a-[2-
[ethyl[(undecafluoropentyl)sulfonyl]amin
o]ethyl]-io-hydroxy-
68298-80-6
DTXSID90883081
313
Poly(oxy-1,2-ethanediyl), a-hydro-io-
hydroxy-, ether with a-fluoro-io-(2-
hydroxyethyl)poly(difluoromethylene)
(1:1)
65545-80-4
DTXSID6049727
313
Poly(oxy-1,2-ethanediyl), a-methyl-io-
hydroxy-, 2-hydroxy-3-[(Y-to-perfluoro-
C6-20-alkyl)thio]propyl ethers
70983-59-4
DTXSID70882951
313
Poly(oxy-1,2-ethanediyl), a-
(isononylphenyl)-io-hydroxy-
37205-87-1
DTXSID00872608
313-N535
Poly(oxy-1,2-ethanediyl), a-
(nonylphenyl)-io-hydroxy-
9016-45-9
DTXSID1027718
313-N535
Poly(oxy-1,2-ethanediyl), a-
(nonylphenyl)-io-hydroxy-, branched
68412-54-4
DTXSID90858693
313-N535
Poly(oxy-1,2-ethanediyl), a-(2-
nonylphenyl)-io-hydroxy-
51938-25-1
DTXSID30872590
313-N535
Poly(oxy-1,2-ethanediyl), a-(4-
nonylphenyl)-io-hydroxy-
26027-38-3
DTXSID2036588
313-N535
Poly(oxy-1,2-ethanediyl), a-(4-
nonylphenyl)-io-hydroxy-, branched
127087-87-0
DTXSID0049733
313-N535
For Reference Only
57
Version: April 2025
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US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Poly[oxy(methyl-1,2-ethanediyl)], a-[2-
[ethyl[(heptadecafluorooctyl)sulfonyl]am
ino]ethyl]-io-hydroxy-
37338-48-0
DTXSID00897538
313
Poly[oxy(methyl-1,2-ethanediyl)], a-[2-
[ethyl[(pentadecafluoroheptyl)sulfonyl]a
mino]ethyl]-w-hydroxy-
68259-39-2
DTXSID30883025
313
Poly[oxy(methyl-1,2-ethanediyl)], a-[2-
[ethyl[(tridecafluorohexyl)sulfonyl]amino
]ethyl]-io-hydroxy-
68259-38-1
DTXSID10883043
313
Poly[oxy(methyl-1,2-ethanediyl)], a-[2-
[ethyl[(undecafluoropentyl)sulfonyl]amin
o]ethyl]-io-hydroxy-
68310-17-8
DTXSID70883044
313
Potassium arsenate
7784-41-0
DTXSID9041100
1
1,000
313c
Potassium arsenite
10124-50-2
DTXSID5057919
1
1,000
500/10,000
1
313c
Potassium bichromate
7778-50-9
DTXSID5025948
10
10,000
313c
Potassium bromate
7758-01-2
DTXSID6020195
313
Potassium chromate
7789-00-6
DTXSID8064858
10
10,000
313c
Potassium cyanide
151-50-8
DTXSID0024268
10
10,000
100
10
313c
P098
Potassium dimethyldithiocarbamate
128-03-0
DTXSID7034834
313
Potassium heptafluorobutanoate
2966-54-3
DTXSID20896624
313
Potassium hydroxide
1310-58-3
DTXSID5029633
1,000
1,000,000
Potassium A/-methyldithiocarbamate
137-41-7
DTXSID1034424
313
Potassium perfluorobutane sulfonate
29420-49-3
DTXSID3037707
313
Potassi u m pe rfI u o roocta n es u Ifo n ate
2795-39-3
DTXSID8037706
313
Potassium perfluorooctanoate
2395-00-8
DTXSID00880026
313
Potassium permanganate
7722-64-7
DTXSID2034839
100
100,000
313c
Potassium silver cyanide
506-61-6
DTXSID5024269
1
500
1
313c
P099
Profenofos
41198-08-7
DTXSID3032464
313
Promecarb
2631-37-0
DTXSID4037617
1000
500/10,000
1000
P201
Prometryn
7287-19-6
DTXSID4024272
313
Pronamide
23950-58-5
DTXSID2020420
5,000
313
U192
Propachlor
1918-16-7
DTXSID4024274
313
Propadiene
463-49-0
DTXSID1029178
10,000
For Reference Only
58
Version: April 2025
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US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
1,2-Propadiene
463-49-0
DTXSID1029178
10,000
2-Propanamine
75-31-0
DTXSID2025682
10,000
Propane
74-98-6
DTXSID5026386
10,000
Propane, 2-chloro-
75-29-6
DTXSID6047739
10,000
Propane 1,2-dichloro-
78-87-5
DTXSID0020448
1,000
1,000,000i
X
U083
Propane, 2,2-dimethyl-
463-82-1
DTXSID6029179
10,000
Propanedioic acid, mono(Y-io-perfluoro-
C8-12-alkyl) derivs., bis[4-
(ethenyloxy)butyl] esters
238420-80-9
DTXSID40883071
313
U227
Propanedioic acid, mono(Y-io-perfluoro-
C8-12-alkyl) derivs., di-me esters
238420-68-3
DTXSID20881893
313
1,3-Propanediol, 2,2-bis[[(y-to-perfluoro-
C10-20-alkyl)thio]methyl] derivs.,
phosphates, ammonium salts
148240-89-5
DTXSID60883038
313
U140
Propane, 2-methyl
75-28-5
DTXSID1026401
10,000
Propanenitrile
107-12-0
DTXSID1021879
10,000
10
500
10
P101
Propanenitrile, 2-methyl-
78-82-0
DTXSID5026461
20,000
1,000
1,000
1-Propanesulfonic acid, 2-methyl-, 2-[[1-
oxo-3-[(Y-to-perfluoro-C4-16-
alkyl)thio]propyl]amino] derivs., sodium
salts
68187-47-3
DTXSID60882960
313
1,3-Propane sultone
1120-71-4
DTXSID8021195
10
313
U193
Propanil
709-98-8
DTXSID8022111
313
1-Propanaminium, 3-amino-N-
(carboxymethyl)-N,N-dimethyl-, N-[2-[(y-
io-perfluoro-C4-20-alkyl)thio]acetyl]
derivs., inner salts
1078715-61-3
DTXSID30882917
313
1,3-Propanediol, 2,2-bis[[(Y-io-perfluoro-
C4-10-alkyl)thio]methyl] derivs.,
phosphates, ammonium salts
148240-85-1
DTXSID00883037
313
1,3-Propanediol, 2,2-bis[[(Y-io-perfluoro-
C6-12-alkyl)thio]methyl] derivs.,
phosphates, ammonium salts
148240-87-3
DTXSID90883046
313
For Reference Only
59
Version: April 2025
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US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
1,3-Propanediol, 2,2-bis[[(y-io-perfluoro-
C6-12-alkyl)thio]methyl] derivs.,
polymers with 2,2-bis[[(y-io-perfluoro-
C10-20-alkyl)thio]methyl]-1,3-
propanediol, 1,6-diisocyanato-2,2,4(or
2,4,4)-trimethylhexane, 2-heptyl-3,4-
bis(9-isocyanatononyl)-1 -
pentylcyclohexane and 2,2'-
(methylimino)bis[ethanol]
1078142-10-5
DTXSID80882604
313
1-Propanaminium, 3-
[[(heptadecafluorooctyl)sulfonyl]amino]-
N,N,N- trimethyl-, chloride
38006-74-5
DTXSID50880410
313
1-Propanaminium, 2-hydroxy-N,N,N-
trimethyl-, 3-[(y-io-perfluoro-C6-20-
alkyl)thio] derivs., chlorides
70983-60-7
DTXSID80883035
313
1-Propanaminium, N,N,N-trimethyl-3-
[[(pentadecafluoroheptyl)sulfonyl]amino]
, chloride
68555-81-7
DTXSID30880615
313
1-Propanaminium, N,N,N-trimethyl-3-
[[(pentadecafluoroheptyl)sulfonyl]amino]
, iodide
67584-58-1
DTXSID60880567
313
1-Propanaminium, N,N,N-trimethyl-3-
[[(tridecafluorohexyl)sulfonyl]amino]-,
chloride
52166-82-2
DTXSID90880454
313
1-Propanaminium, N,N,N-trimethyl-3-
[[(tridecafluorohexyl)sulfonyl]amino]-,
iodide
68957-58-4
DTXSID90880939
313
1-Propanaminium, N,N,N-trimethyl-3-
[[(undecafluoropentyl)sulfonyl]amino]-,
chloride
68957-55-1
DTXSID10880618
313
1-Propanaminium, N,N,N-trimethyl-3-
[[(undecafluoropentyl)sulfonyl]amino]-,
iodide
68957-57-3
DTXSID30880938
313
Propargite
2312-35-8
DTXSID4024276
10
10,000
313
Propargyl alcohol
107-19-7
DTXSID5021883
1,000
313
P102
Propargyl bromide
106-96-7
DTXSID3042340
10
10
For Reference Only
60
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
2-Propenal
107-02-8
DTXSID5020023
5,000
1
1,000
500
1
X
P003
2-Propen-1-amine
107-11-9
DTXSID8024440
10,000
500
500
X
Propene
115-07-1
DTXSID5021205
10,000
X
1-Propene
115-07-1
DTXSID5021205
10,000
X
1-Propene, 1-chloro-
590-21-6
DTXSID5020318
10,000
1-Propene, 2-chloro-
557-98-2
DTXSID4040262
10,000
1-Propene, 2-methyl-
115-11-7
DTXSID9020748
10,000
2-Propenenitrile
107-13-1
DTXSID5020029
20,000
100
100,000
10,000
100
X
U009
2-Propenenitrile, 2-methyl-
126-98-7
DTXSID1024176
10,000
1,000
500
1,000
X
U152
2-Propenoic acid, butyl ester, telomer
with 2-
[[(heptadecafluorooctyl)sulfonyl]methyla
mino]ethyl 2-propenoate, 2-
[methyl[(nonafluorobutyl)sulfonyl]amino]
ethyl 2-propenoate, a-(2- methyl-1-oxo-
2-propenyl)-io-hydroxypoly(oxy-1,4-
butanediyl), a-(2- methyl-1-oxo-2-
propenyl)-io-[(2-methyl-1 -oxo-2-
propenyl)oxy]poly(oxy-1,4-butanediyl), 2
[methyl
[(pe ntad e caf I u o ro h e pty l)s u Ifo ny I] a mi n o]
ethyl 2-propenoate, 2-
[methyl[(tridecafluorohexyl)sulfonyl]ami
no]ethyl 2-propenoate, 2-
[methyl[(undecafluoropentyl)sulfonyl]am
ino]ethyl 2-propenoate and 1-
octanethiol
68227-96-3
DTXSID00882565
313
For Reference Only
61
Version: April 2025
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US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
2-Propenoic acid, 2-
[butyl[(heptadecafluorooctyl)sulfonyl]am
ino]ethyl ester, telomerwith 2-
[butyl[(pentadecafluoroheptyl)sulfonyl]a
mino]ethyl 2-propenoate, methyloxirane
polymer with oxirane di-2-propenoate,
methyloxirane polymer with oxirane
mono-2-propenoate and 1-octanethiol
68298-62-4
DTXSID70882618
313
2-Propenoic acid, esters, 2-methyl-,
dodecyl ester, polymer with a-fluoro-io-
[2-[(2-methyl-1 -oxo-2-propen-1 -
yl)oxy]ethyl]poly(difluoromethylene)
65605-58-5
DTXSID20882840
313
2-Propenoic acid, 2-
[ethyl[(pentadecafluoroheptyl)sulfonyl]a
mino]ethyl ester
59071-10-2
DTXSID3069306
313
2-Propenoic acid, 2-
[[(heptadecafluorooctyl)sulfonyl]methyla
mino]ethyl ester, polymer with 2-[methyl
[(nonafluorobutyl)sulfonyl]amino]ethyl 2-
propenoate, 2-
[methyl[(pentadecafluoroheptyl)sulfonyl]
amino]ethyl 2-
propenoate, 2-
[methyl[(tridecafluorohexyl)sulfonyl]ami
no]ethyl 2-
propenoate, 2-
[methyl[(undecafluoropentyl)sulfonyl]am
ino]ethyl 2- propenoate and a-(1-oxo-2-
propenyl)-io-methoxypoly(oxy-1,2-
ethanediyl)
68867-60-7
DTXSID20882582
313
For Reference Only
62
Version: April 2025
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US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
2-Propenoic acid, 2-methyl-, 2-
(dimethylamino)ethyl ester, polymers
with Bu acrylate, y-w-perfluoro-C8-14-
alkyl acrylate and polyethylene glycol
monomethacrylate, 2,2'-azobis[2,4-
dimethylpentanenitrile]- initiated
150135-57-2
DTXSID70882673
313
2-Propenoic acid, 2-methyl-, 2-
(dimethylamino)ethyl ester, polymers
with Y-w-perfluoro-C10-16-alkyl acrylate
and vinyl acetate, acetates
196316-34-4
DTXSID10882874
313
U159
2-Propenoic acid, 2-methyl-, dodecyl
ester, polymer with a-fluoro-io-[2-[(2-
methyl-1 -oxo-2-propen-1 -
yl)oxy]ethyl]poly(difluoromethylene) and
N-(hydroxymethyl)-2-propenamide
65605-59-6
DTXSID60897635
313
U068
2-Propenoic acid, 2-methyl-, 2-
[ethyl[(heptadecafluorooctyl)sulfonyl]am
ino]ethyl ester, polymer with 2-
[ethyl[(nonafluorobutyl)sulfonyl]amino]et
hyl-methyl-2-propenoate, 2-
[ethyl[(pentadecafluoroheptyl)sulfonyl]a
mino]ethyl 2-methyl-2-propenoate, 2-
[ethyl[(tridecafluorohexyl)sulfonyl]amino
] ethyl 2-methyl-
2-propenoate, 2-
[ethyl[(undecafluoropentyl)sulfonyl]amin
o]ethyl 2-methyl-2-propenoate and
octadecyl 2-methyl-2-propenoate
68555-91-9
DTXSID90882579
313
2-Propenoic acid, 2-methyl-, 2-
ethylhexyl ester, polymer with a-fluoro-
io-[2-[(2-methyl-1 -oxo-2-propen-1 -
yl)oxy]ethyl]poly(difluoromethylene), 2-
hydroxyethyl 2-methyl-2-propenoate
and N-(hydroxymethyl)-2-propenamide
68239-43-0
DTXSID60897610
313
For Reference Only
63
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
2-Propenoic acid, 2-methyl-,
3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,
12,12,12-heneicosafluorododecyl ester
2144-54-9
DTXSID6062204
313
2-Propenoic acid, 2-methyl-,
3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,
12,12,12-heneicosafluorododecyl ester,
polymer with
3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-
heptadecafluorodecyl 2-methyl-2-
propenoate, methyl 2-methyl-2-
propenoate,
3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,
12,12,13,13,14,14,14-
pentacosafluorotetradecyl 2-methyl-2-
propenoate and
3,3,4,4,5,5,6,6,7,7,8,8,8-
tridecafluorooctyl 2-methyl-2-
propenoate
65104-45-2
DTXSID80882588
313
2-Propenoic acid, 2-methyl-,
3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-
heptadecafluorodecyl ester
1996-88-9
DTXSID8062101
313
2-Propenoic acid, 2-methyl-, hexadecyl
ester, polymers with 2-hydroxyethyl
methacrylate, y-w-perfluoro-CI 0-16-
alkyl acrylate and stearyl methacrylate
203743-03-7
DTXSID90882817
313
2-Propenoic acid, 2-methyl-,
3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,
12,12,13,13,14,14,15,15,16,16,16-
nonacosafluorohexadecyl ester
4980-53-4
DTXSID4063660
313
For Reference Only
64
Version: April 2025
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US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
2-Propenoic acid, 2-methyl-, octadecyl
ester, polymer with
3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,
12,12,12-heneicosafluorododecyl 2-
propenoate,
3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-
heptadecafluorodecyl 2-propenoate and
3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,
12,12,13,13,14,14,14-
pentacosafluorotetradecyl 2-propenoate
142636-88-2
DTXSID00882601
313
2-Propenoic acid, 2-methyl-,
3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,
12,12,13,13,14,14,14-
pentacosafluorotetradecyl ester
6014-75-1
DTXSID1064083
313
2-Propenoic acid, 2-
[methyl[(pentadecafluoroheptyl)sulfonyl]
amino]ethyl ester
68084-62-8
DTXSID1071080
313
2-Propenoic acid, 2-methyl-, polymer
with butyl 2-methyl-2-propenoate,
3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-
heptadecafluorodecyl 2-propenoate, 2-
hydroxyethyl 2-methyl-2-propenoate
and methyl 2-methyl-2-propenoate
200513-42-4
DTXSID30108846
313
2-Propenoic acid, 2-
[methyl[(tridecafluorohexyl)sulfonyl]ami
no]ethyl ester
67584-57-0
DTXSID7070509
313
2-Propenoic acid, 2-
[methyl[(undecafluoropentyl)sulfonyl]am
ino]ethyl ester
67584-56-9
DTXSID2070508
313
2-Propen-1-ol
107-18-6
DTXSID8020044
15,000
100
100,000
1,000
100
X
P005
2-Propenoyl chloride
814-68-6
DTXSID1061150
5,000
100
100
Propetamphos
31218-83-4
DTXSID7032470
313
Propham
122-42-9
DTXSID7020766
1000
U373
For Reference Only
65
Version: April 2025
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US EPA: List of Lists
EPA 550-B-24-001
CAS Number/
CAA
CWA
EPCRA
313 Category
112(r)(7)
CERCLA
311 (j)(5)
EPCRA 302
304 EHS
EPCRA
RCRA
Name
Codes
Comptox
TQ
HS RQ
HS TQ
EHS TPQ
RQ
313 TRI
Code
Propiconazole
60207-90-1
DTXSID8024280
313
beta-Propiolactone
57-57-8
DTXSID8021197
10
500
10
313
Propionaldehyde
123-38-6
DTXSID2021658
1,000
313
Propionic acid
79-09-4
DTXSID8025961
5,000
5,000,000
Propionic anhydride
123-62-6
DTXSID1027007
5,000
5,000,000
Propionitrile
107-12-0
DTXSID1021879
10,000
10
500
10
P101
Propionitrile, 3-chloro-
542-76-7
DTXSID4030336
1,000
1,000
1,000
X
P027
Propiophenone, 4'-amino
70-69-9
DTXSID7021738
100/10,000
100
Propoxur
114-26-1
DTXSID7021948
100
313
U411
n-Propylamine
107-10-8
DTXSID6021878
5,000
U194
Propyl chloroformate
109-61-5
DTXSID3042342
15,000
500
500
Propylene
115-07-1
DTXSID5021205
10,000
313
Propyleneimine
75-55-8
DTXSID8024286
10,000
1
10,000
1
313
P067
Propylene oxide
75-56-9
DTXSID5021207
10,000
100
100,000
10,000
100
313
Propyne
74-99-7
DTXSID0026387
10,000
1-Propyne
74-99-7
DTXSID0026387
10,000
Prothoate
2275-18-5
DTXSID8037627
100/10,000
100
Pyrene
129-00-0
DTXSID3024289
5,000
1,000/10,000
5,000
Pyrethrins
121-21-1
DTXSID4034499
1
1,000
Pyrethrins
121-29-9
DTXSID2042353
1
1,000i
Pyrethrins
8003-34-7
DTXSID8034873
1
Pyridine
110-86-1
DTXSID9021924
1,000
313
U196
Pyridine, 4-amino-
504-24-5
DTXSID0023870
1,000
500/10,000
1,000
P008
Pyridine, 3-(1-methyl-2-pyrrolidinyl)-,(S)-
, & salts
54-11-5
DTXSID1020930
100
100
100
313c
P075
Pyridine, 2-methyl-5-vinyl-
140-76-1
DTXSID2059699
500
500
Pyridine, 4-nitro-, 1-oxide
1124-33-0
DTXSID9041524
500/10,000
500
Pyridinium, 1-
(3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-
heptadecafluorodecyl)-, salt with 4-
methylbenzenesulfonic acid (1:1)
61798-68-3
DTXSID4069501
313
Pyriminil
53558-25-1
DTXSID1042360
100/10,000
100
For Reference Only
66
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Quinoline
91-22-5
DTXSID1021798
5,000
5,000,000
313
Quinone
106-51-4
DTXSID6020145
10
313
U197
Quintozene
82-68-8
DTXSID2021105
100
313
U185
Quizalofop-ethyl
76578-14-8
DTXSID9023889
313
Radionuclides (including Radon)
N.A.
DTXSID001351488
§
313
Reserpine
50-55-5
DTXSID7021237
5,000
U200
Resmethrin
10453-86-8
DTXSID7022253
313
Resorcinol
108-46-3
DTXSID2021238
5,000
5,000,000
U201
Saccharin (manufacturing)
81-07-2
DTXSID5021251
100
313
U202
Saccharin and salts
81-07-2
DTXSID5021251
100
U202
Safrole
94-59-7
DTXSID0021254
100
313
U203
Salcomine
14167-18-1
DTXSID1065718
500/10,000
500
Sarin
107-44-8
DTXSID0042371
10
10
Selenious acid
7783-00-8
DTXSID9024300
10
1,000/10,000
10
313c
U204
Selenious acid, dithallium(1+) salt
12039-52-0
DTXSID6024335
1,000
313c
P114
Selenium ||
7782-49-2
DTXSID9021261
100
313
Selenium Compounds
N725
DTXSID101336510
&
313
Selenium dioxide
7446-08-4
DTXSID4021264
10
10,000
313c
Selenium oxychloride
7791-23-3
DTXSID50884438
500
500
313c
Selenium sulfide
7488-56-4
DTXSID0042375
10
313c
U205
Selenourea
630-10-4
DTXSID4024303
1,000
P103
Semicarbazide hydrochloride
563-41-7
DTXSID4020244
1,000/10,000
1,000
Sethoxydim
74051-80-2
DTXSID9024304
313
Silane
7803-62-5
DTXSID6052534
10,000
Silane, (4-aminobutyl)diethoxymethyl-
3037-72-7
DTXSID20893072
1,000
1,000
Silane,
(3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-
heptadecafluorodecyl)trimethoxy-
83048-65-1
DTXSID7072884
313
Silane,
trichloro(3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,1
0,10-heptadecafluorodecyl)-
78560-44-8
DTXSID2074376
313
Silane, chlorotrimethyl-
75-77-4
DTXSID2024822
10,000
1,000
1,000
For Reference Only
67
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
CAS Number/
CAA
CWA
EPCRA
313 Category
112(r)(7)
CERCLA
311 (j)(5)
EPCRA 302
304 EHS
EPCRA
RCRA
Name
Codes
Comptox
TQ
HS RQ
HS TQ
EHS TPQ
RQ
313 TRI
Code
Silane, dichloro-
4109-96-0
DTXSID1052082
10,000
Silane, dichlorodimethyl-
75-78-5
DTXSID9026425
5,000
500
500
Silane, tetramethyl-
75-76-3
DTXSID9026423
10,000
Silane, trichloro-
10025-78-2
DTXSID4029301
10,000
Silane, trichloromethyl-
75-79-6
DTXSID4026426
5,000
500
500
Silicic acid (H4Si04), disodium salt,
reaction products with
chlorotrimethylsilane and
3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-
heptadecafluoro-1 -decanol
125476-71-3
DTXSID20106235
313
Siloxanes and Silicones,
(3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-
heptadecafluorodecyl)oxy Me, hydroxy
Me, Me octyl, ethers with polyethylene
glycol mono-Me ether
143372-54-7
DTXSID70106588
313
Silver ||
7440-22-4
DTXSID4024305
1,000
313
Silver Compounds
N740
DTXSID801336511
&
313
Silver cyanide
506-64-9
DTXSID9024306
1
313c
P104
Silver nitrate
7761-88-8
DTXSID3032042
1
1,000
313c
Silver(l) perfluorooctanoate
335-93-3
DTXSID00880127
313
Silvex (2,4,5-TP)
93-72-1
DTXSID0021387
100
100,000
Simazine
122-34-9
DTXSID4021268
313
Sodium
7440-23-5
DTXSID1049774
10
10,000
Sodium arsenate
7631-89-2
DTXSID5020102
1
1,000
1,000/10,000
1
313c
Sodium arsenite
7784-46-5
DTXSID5020104
1
1,000
500/10,000
1
313c
Sodium azide (Na(N3))
26628-22-8
DTXSID8020121
1,000
500
1,000
313
P105
Sodium bichromate
10588-01-9
DTXSID8021274
10
10,000
313c
Sodium bifluoride
1333-83-1
DTXSID1037010
100
100,000
Sodium bisulfite
7631-90-5
DTXSID8034902
5,000
5,000,000
Sodium cacodylate
124-65-2
DTXSID3034408
100/10,000
100
Sodium chromate
7775-11-3
DTXSID7032056
10
10,000
313c
Sodium cyanide (Na(CN))
143-33-9
DTXSID4024309
10
10,000
100
10
313c
P106
Sodium dicamba
1982-69-0
DTXSID8027450
313
For Reference Only
68
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Sodium dimethyldithiocarbamate
128-04-1
DTXSID6027050
313
Sodium dodecylbenzenesulfonate
25155-30-0
DTXSID7025219
1,000
1,000,000
Sodium fluoride
7681-49-4
DTXSID2020630
1,000
1,000,000
Sodium fluoroacetate
62-74-8
DTXSID8024311
10
10/10,000
10
313
P058
Sodium hydrosulfide
16721-80-5
DTXSID3029738
5,000
5,000,000
Sodium hydroxide
1310-73-2
DTXSID0029634
1,000
1,000,000
Sodium hypochlorite
7681-52-9
DTXSID8021276
100
100,000
Sodium hypochlorite
10022-70-5
DTXSID4064898
100
100,000i
Sodium methylate
124-41-4
DTXSID8027030
1,000
1,000,000
Sodium nitrite
7632-00-0
DTXSID0020941
100
100,000
313
Sodium pentachlorophenate
131-52-2
DTXSID4040264
313
Sodium perfluorodecanoate (PFDA-Na)
3830-45-3
DTXSID20880028
313
Sodium o-phenylphenoxide
132-27-4
DTXSID2021153
313
Sodium phosphate, dibasic
7558-79-4
DTXSID1026039
5,000
5,000,000
Sodium phosphate, dibasic
10039-32-4
DTXSID4064923
5,000
5,000,000
Sodium phosphate, dibasic
10140-65-5
DTXSID0064969
5,000
5,000,000
Sodium phosphate, tribasic
7601-54-9
DTXSID2035223
5000
5,000,000
Sodium phosphate, tribasic
10101-89-0
DTXSID0049810
5,000
5,000,000
Sodium phosphate, tribasic
10361-89-4
DTXSID6065054
5,000
5,000,000
Sodium selenate
13410-01-0
DTXSID5032076
100/10,000
100
313c
Sodium selenite
7782-82-3
DTXSID2064814
100
100,000
313c
Sodium selenite
10102-18-8
DTXSID0032077
100
100,000
100/10,000
100
313c
Sodium tellurite
10102-20-2
DTXSID2064943
500/10,000
500
Sodium perfluorobutanoate
2218-54-4
DTXSID70880179
313
Sodium perfluorohexanoate
2923-26-4
DTXSID3052856
313
Sodium perfluorooctanoate
335-95-5
DTXSID40880025
313
2,4-D sodium salt
2702-72-9
DTXSID4027496
313
Stannane, acetoxytriphenyl-
900-95-8
DTXSID6021408
500/10,000
500
Streptozotocin
18883-66-4
DTXSID2021282
1
U206
Strontium chromate
7789-06-2
DTXSID70872832
10
10,000
313c
For Reference Only
69
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Strychnine
57-24-9
DTXSID6023600
10
10,000
100/10,000
10
313c
P108
Strychnine, and salts
57-24-9
DTXSID6023600
10
10,000
313c
P108
Strychnine and salts
N746
DTXSID501336512
313
Strychnine, sulfate
60-41-3
DTXSID8021721
10
100/10,000
10
313c
Styrene
100-42-5
DTXSID2021284
1,000
1,000,000
313
Styrene oxide
96-09-3
DTXSID2021286
100
313
Sulfluramid
4151-50-2
DTXSID1032646
313
Sulfonic acids, C6-12-alkane, y-w-
perfluoro, ammonium salts
180582-79-0
DTXSID80881930
313
Sulfotep
3689-24-5
DTXSID7024328
100
500
100
P109
Sulfoxide, 3-chloropropyl octyl
3569-57-1
DTXSID5041483
500
500
Sulfur dioxide
7446-09-5
DTXSID6029672
500
500
Sulfur dioxide (anhydrous)
7446-09-5
DTXSID6029672
5,000
500
500
Sulfur fluoride (SF4), (T-4)-
7783-60-0
DTXSID40893074
2,500
100
100
Sulfuric acid
7664-93-9
DTXSID5029683
1,000
1,000,000
1,000
1,000
Sulfuric acid (acid aerosols)
7664-93-9
DTXSID5029683
1,000
1,000,000
1,000
1,000
313
Sulfuric acid (fuming)
8014-95-7
DTXSID5064889
10,000
1,000
Sulfuric acid, mixture with sulfur trioxide
8014-95-7
DTXSID5064889
10,000
1,000
Sulfur monochloride (9)
12771-08-3
DTXSID10192708
1,000
Sulfur monochloride (9)
10025-67-9
DTXSID3042427
1,000
1,000,000
Sulfur phosphide
1314-80-3
DTXSID0051659
100
100,000
U189
Sulfur tetrafluoride
7783-60-0
DTXSID40893074
2,500
100
100
Sulfur trioxide
7446-11-9
DTXSID1029673
10,000
100
100
Sulfuryl fluoride
2699-79-8
DTXSID9034945
313
Sulprofos
35400-43-2
DTXSID8032675
313
2,4,5-T acid
93-76-5
DTXSID5021388
1,000
1,000,000
2,4,5-T amines
1319-72-8
DTXSID00927384
5,000
5,000,000
2,4,5-T amines
2008-46-0
DTXSID30894994
5,000
2,4,5-T amines
3813-14-7
DTXSID6063199
5,000
5,000,000
2,4,5-T amines
6369-96-6
DTXSID8064270
5,000
5,000,000
2,4,5-T amines
6369-97-7
DTXSID3064271
5,000
5,000,000
For Reference Only
70
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
2,4,5-T esters
93-79-8
DTXSID7026073
1,000
1,000,000
2,4,5-T esters
1928-47-8
DTXSID8041329
1,000
1,000,000
2,4,5-T esters
2545-59-7
DTXSID3041328
1,000
1,000,000
2,4,5-T esters
25168-15-4
DTXSID7026075
1,000
1,000,000
2,4,5-T esters
61792-07-2
DTXSID90866339
1,000
1,000,000
2,4,5-T salts
13560-99-1
DTXSID2041333
1,000
1,000,000
Tabun
77-81-6
DTXSID80861631
10
10
Tebuthiuron
34014-18-1
DTXSID3024316
313
Tellurium hexafluoride
7783-80-4
DTXSID20893077
100
100
Temephos
3383-96-8
DTXSID1032484
313
TEPP
107-49-3
DTXSID3034957
10
10,000
100
10
P111
Terbacil
5902-51-2
DTXSID8024317
313
Terbufos
13071-79-9
DTXSID2022254
100
100
Tetrabromobisphenol A
79-94-7
DTXSID1026081
313
1,2,4,5-Tetrachlorobenzene
95-94-3
DTXSID7024320
5,000
U207
2,3,7,8-Tetrachlorodibenzofuran
51207-31-9
DTXSID3052147
313-N150
P037
2,3,7,8-Tetrachlorodibenzo-p-dioxin
(TCDD)
1746-01-6
DTXSID2021315
1
313-N150
1,1,1,2-Tetrachloroethane
630-20-6
DTXSID2021317
100
313
U208
1,1,2,2-Tetrachloroethane
79-34-5
DTXSID7021318
100
313
U209
Tetrachloroethylene
127-18-4
DTXSID2021319
100
313
U210
1,1,2,2-Tetrachloro-1-fluoroethane
354-14-3
DTXSID6059863
313
1,1,1,2-Tetrachloro-2-fluoroethane
354-11-0
DTXSID6042020
313
2,3,4,6-Tetrachlorophenol
58-90-2
DTXSID9021716
10
313c
Tetrachlorvinphos
961-11-5
DTXSID1021320
313
Tetracycline hydrochloride
64-75-5
DTXSID6021321
313
Tetradecane,
1,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,
10,11,11,12,12-pentacosafluoro-14-
iodo-
30046-31-2
DTXSID2067535
313
For Reference Only
71
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
1-Tetradecanesulfonyl chloride,
3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,
12,12,13,13,14,14,14-pentacosafluoro-
68758-57-6
DTXSID3071727
313
1-Tetradecanol,
3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,
12,12,13,13,14,14,14-pentacosafluoro-
39239-77-5
DTXSID3068170
313
Tetraethyldithiopyrophosphate
3689-24-5
DTXSID7024328
100
500
100
P109
Tetraethyl lead
78-00-2
DTXSID7023801
10
10,000
100
10
313c
P110
Tetraethyl pyrophosphate
107-49-3
DTXSID3034957
10
10,000
100
10
P111
Tetraethyltin
597-64-8
DTXSID9022073
100
100
Tetrafluoroethylene
116-14-3
DTXSID6021325
10,000
313
1,1,2,2-Tetrahydroperfluorodecyl
acrylate
27905-45-9
DTXSID5067348
313
1,1,2,2-Tetrahydroperfluorododecyl
acrylate
17741-60-5
DTXSID9037743
313
1,1,2,2-Tetrahydroperfluorohexadecyl
acrylate
34362-49-7
DTXSID6067836
313
1,1,2,2-Tetrahydroperfluorotetradecyl
acrylate
34395-24-9
DTXSID5067841
313
Tetramethrin
7696-12-0
DTXSID6032649
313
p-(1,1,3,3-Tetramethylbutyl)phenol
140-66-9
DTXSID9022360
313
Tetramethyllead
75-74-1
DTXSID0026123
10,000
100
100
313c
Tetramethylsilane
75-76-3
DTXSID9026423
10,000
Tetranitromethane
509-14-8
DTXSID5021334
10,000
10
500
10
313
P112
Thallic oxide
1314-32-5
DTXSID1024330
100
313c
P113
Thallium ||
7440-28-0
DTXSID2036035
1,000
313
Thallium(l) acetate
563-68-8
DTXSID6024331
100
313c
U214
Thallium(l) carbonate
6533-73-9
DTXSID1024332
100
100/10,000
100
313c
U215
Thallium chloride TICI
7791-12-0
DTXSID6024333
100
100/10,000
100
313c
U216
Thallium Compounds
N760
DTXSID201336513
&
313
Thallium(l) nitrate
10102-45-1
DTXSID1024334
100
313c
U217
For Reference Only
72
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Thallium sulfate
10031-59-1
DTXSID401014795
100
100,000
100/10,000
100
313c
Thallium(l) sulfate
7446-18-6
DTXSID1024336
100
100,000
100/10,000
100
313c
P115
Thallous carbonate
6533-73-9
DTXSID1024332
100
100/10,000
100
313c
U215
Thallous chloride
7791-12-0
DTXSID6024333
100
100/10,000
100
313c
U216
Thallous malonate
2757-18-8
DTXSID1062627
100/10,000
100
Thallous sulfate
7446-18-6
DTXSID1024336
100
100,000
100/10,000
100
313c
P115
Thiabendazole
148-79-8
DTXSID0021337
313
Thioacetamide
62-55-5
DTXSID9021340
10
313
U218
Thiobencarb
28249-77-6
DTXSID6024337
313
U238
Thiocarbazide
2231-57-4
DTXSID7027461
1,000/10,000
1,000
Thiocyanic acid, y-io-perfluoro-C4-20-
alkyl esters
97553-95-2
DTXSID90881966
313
Thiocyanic acid, methyl ester
556-64-9
DTXSID5060304
20,000
10,000
10,000
4,4'-Thiodianiline
139-65-1
DTXSID9021344
313
Thiodicarb
59669-26-0
DTXSID0032578
100
313
U410
Thiofanox
39196-18-4
DTXSID4042468
100
1,000/10,000
100
P045
Thiols, C4-10, y-io-perfluoro
68140-18-1
DTXSID90881901
313
Thiols, C4-20, y-io-perfluoro, telomers
with acrylamide and acrylic acid, sodium
salts
1078712-88-5
DTXSID60881837
313
Thiols, C6-12, y-w-perfluoro
68140-20-5
DTXSID30881905
313
Thiols, C8-20, y-w-perfluoro, telomers
with acrylamide
70969-47-0
DTXSID10881943
313
Thiols, C10-20, y-io-perfluoro
68140-21-6
DTXSID90881906
313
Thiomethanol
74-93-1
DTXSID5026382
10,000
100
100,000
500
100
X
U153
Thionazin
297-97-2
DTXSID8042470
100
500
100
P040
Thiophanate-ethyl
23564-06-9
DTXSID3034531
313
Thiophanate-methyl
23564-05-8
DTXSID1024338
10
313
U409
Thiophenol
108-98-5
DTXSID7026811
100
500
100
P014
Thiosemicarbazide
79-19-6
DTXSID9021346
100
100/10,000
100
313
P116
Thiourea
62-56-6
DTXSID9021348
10
313
U219
Thiourea, (2-chlorophenyl)-
5344-82-1
DTXSID4063799
100
100/10,000
100
P026
For Reference Only
73
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Thiourea, (2-methylphenyl)-
614-78-8
DTXSID6060634
500/10,000
500
Thiourea, 1-naphthalenyl-
86-88-4
DTXSID8020919
100
500/10,000
100
P072
Thiram
137-26-8
DTXSID5021332
10
313
U244
Thorium dioxide
1314-20-1
DTXSID0051657
313
Titanium chloride (TiCI4) (T-4)-
7550-45-0
DTXSID8042476
2,500
1,000
100
1,000
X
Titanium tetrachloride
7550-45-0
DTXSID8042476
2,500
1,000
100
1,000
313
o-Tolidine
119-93-7
DTXSID5024059
10
X
U095
Toluene
108-88-3
DTXSID7021360
1,000
1,000,000
313
U220
Toluenediamine
25376-45-8
DTXSID9027869
10
X
U221
Toluene-2,4-diisocyanate
584-84-9
DTXSID7026156
10,000
100
500
100
313
Toluene-2,6-diisocyanate
91-08-7
DTXSID2026157
10,000
100
100
100
313
Toluenediisocyanate (mixed isomers)
26471-62-5
DTXSID0024341
10,000
100
313
U223
Toluene diisocyanate (unspecified
isomer)
26471-62-5
DTXSID0024341
10,000
100
X
U223
o-Toluidine hydrochloride
636-21-5
DTXSID7021364
100
313
U222
o-Toluidine
95-53-4
DTXSID1026164
100
313
U328
p-Toluidine
106-49-0
DTXSID6021872
100
U353
Toxaphene
8001-35-2
DTXSID7021368
1
1,000
500/10,000
1
313
P123
2,4,5-TP esters
32534-95-5
DTXSID60858807
100
100,000
Tr
adimefon
43121-43-3
DTXSID3023897
313
Tr
allate
2303-17-5
DTXSID5024344
100
313
U389
Tr
amiphos
1031-47-6
DTXSID2042482
500/10,000
500
Tr
aziquone
68-76-8
DTXSID1021370
313
Tr
azofos
24017-47-8
DTXSID9037612
500
500
Tr
benuron-methyl
101200-48-0
DTXSID8024101
313
Tr
bromomethane
75-25-2
DTXSID1021374
100
X
U225
Tr
butyltin fluoride
1983-10-4
DTXSID1032480
313
Tr
butyltin methacrylate
2155-70-6
DTXSID9035204
313
S, S, S -T ributyltrithiophosphate
78-48-8
DTXSID1024174
313
Trichlorfon
52-68-6
DTXSID0021389
100
100,000
313
Trichloroacetyl chloride
76-02-8
DTXSID9034070
500
500
313
For Reference Only
74
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
1,2,3-Trichlorobenzene
87-61-6
DTXSID8026193
313
1,2,4-Trichlorobenzene
120-82-1
DTXSID0021965
100
313
Trichloro(chloromethyl)silane
1558-25-4
DTXSID2061779
100
100
Trichloro(dichlorophenyl)silane
27137-85-5
DTXSID70893082
500
500
1,1,1-Trichloroethane
71-55-6
DTXSID0021381
1,000
313
U226
1,1,2-Trichloroethane
79-00-5
DTXSID5021380
100
313
U227
Trichloroethylene
79-01-6
DTXSID0021383
100
100,000
313
U228
Trichloroethylsilane
115-21-9
DTXSID7026940
500
500
Trichlorofluoromethane
75-69-4
DTXSID5021384
5,000
313
U121
Trichloromethanesulfenyl chloride
594-42-3
DTXSID6025854
10,000
100
500
100
X
Trichloromonofluoromethane
75-69-4
DTXSID5021384
5,000
X
U121
Trichloronate
327-98-0
DTXSID9038420
500
500
Trichlorophenol
25167-82-2
DTXSID00858725
10
10,000
313c
2,3,4-Trichlorophenol
15950-66-0
DTXSID5026207
10
10,000i
313c
2,3,5-Trichlorophenol
933-78-8
DTXSID0026208
10
10,000i
313c
2,3,6-Trichlorophenol
933-75-5
DTXSID5026209
10
10,000i
313c
2,4,5-Trichlorophenol
95-95-4
DTXSID4024359
10
10,000i
313
2,4,6-Trichlorophenol
88-06-2
DTXSID5021386
10
10,000i
313
3,4,5-Trichlorophenol
609-19-8
DTXSID4026212
10
10,000i
Trichlorophenylsilane
98-13-5
DTXSID5026621
500
500
1,2,3-Trichloropropane
96-18-4
DTXSID9021390
313
Trichlorosilane
10025-78-2
DTXSID4029301
10,000
Triclopyr-triethylammonium salt
57213-69-1
DTXSID0034302
313
Triethanolamine dodecylbenzene
sulfonate
27323-41-7
DTXSID5027932
1,000
1,000,000
Triethoxysilane
998-30-1
DTXSID6052667
500
500
Triethylamine
121-44-8
DTXSID3024366
5,000
5,000,000
313
U404
Trifluorochloroethylene
79-38-9
DTXSID3026485
10,000
Trifluralin
1582-09-8
DTXSID4021395
10
313
Triforine
26644-46-2
DTXSID5032654
313
Triglycidyl isocyanurate
2451-62-9
DTXSID4026262
313
For Reference Only
75
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
CAS Number/
CAA
CWA
EPCRA
313 Category
112(r)(7)
CERCLA
311 (j)(5)
EPCRA 302
304 EHS
EPCRA
RCRA
Name
Codes
Comptox
TQ
HS RQ
HS TQ
EHS TPQ
RQ
313 TRI
Code
Trimethylamine
75-50-3
DTXSID2026238
10,000
100
100,000
1,2,4-Trimethylbenzene
95-63-6
DTXSID6021402
313
Trimethylchlorosilane
75-77-4
DTXSID2024822
10,000
1,000
1,000
2,2,4-Trimethylhexamethylene
diisocyanate
16938-22-0
DTXSID0044602
313-N120
2,4,4-Trimethylhexamethylene
diisocyanate
15646-96-5
DTXSID70864611
313-N120
Trimethylolpropane phosphite
824-11-3
DTXSID10871809
100/10,000
100
2,2,4-Trimethylpentane
540-84-1
DTXSID7024370
1,000
2,3,5-Trimethylphenyl methylcarbamate
2655-15-4
DTXSID9041318
313
Trimethyltin chloride
1066-45-1
DTXSID6042496
500/10,000
500
1,3,5-Trinitrobenzene
99-35-4
DTXSID6021406
10
U234
Triphenyltin chloride
639-58-7
DTXSID2040733
500/10,000
500
313
Triphenyltin hydroxide
76-87-9
DTXSID1021409
313
Tris(2-chloroethyl)amine
555-77-1
DTXSID7048744
100
100
Tris(2-chloroethyl) phosphate
115-96-8
DTXSID5021411
313
Tris(2,3-dibromopropyl) phosphate
126-72-7
DTXSID5021413
10
313
U235
Tris(1,3-dichloro-2-propyl) phosphate
13674-87-8
DTXSID9026261
313
Trypan blue
72-57-1
DTXSID4026268
10
313
U236
Tris(dimethylphenol) phosphate
25155-23-1
DTXSID9026267
313
Uracil mustard
66-75-1
DTXSID8026270
10
U237
Uranyl acetate
541-09-3
DTXSID3060243
100
100,000
Uranyl nitrate
10102-06-4
DTXSID2037136
100
100,000
Uranyl nitrate
36478-76-9
DTXSID6091556
100
100,000
Urethane
51-79-6
DTXSID9021427
100
313
U238
Valinomycin
2001-95-8
DTXSID9041150
1,000/10,000
1,000
Vanadium Compounds
N770
DTXSID901336514
313
Vanadium (except when contained in
an alloy)
7440-62-2
DTXSID2040282
313
Vanadium pentoxide
1314-62-1
DTXSID2023806
1,000
1,000,000
100/10,000
1,000
313c
P120
Vanadyl sulfate
27774-13-6
DTXSID4021428
1,000
1,000,000
313c
For Reference Only
76
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Vinclozolin
50471-44-8
DTXSID4022361
313
Vinyl acetate
108-05-4
DTXSID3021431
15,000
5,000
5,000,000
1,000
5,000
313
Vinyl acetate monomer
108-05-4
DTXSID3021431
15,000
5,000
5,000,000
1,000
5,000
X
Vinyl acetylene
689-97-4
DTXSID4029199
10,000
Vinyl bromide
593-60-2
DTXSID8021432
100
313
Vinyl chloride
75-01-4
DTXSID8021434
10,000
1
313
U043
Vinyl ethyl ether
109-92-2
DTXSID3029609
10,000
Vinyl fluoride
75-02-5
DTXSID3021435
10,000
313
Vinylidene chloride
75-35-4
DTXSID8021438
10,000
100
100,000
313
U078
Vinylidene fluoride
75-38-7
DTXSID3021439
10,000
Vinyl methyl ether
107-25-5
DTXSID4026761
10,000
Warfarin
81-81-2
DTXSID5023742
100
500/10,000
100
X 313c
P001
Warfarin and salts
N874
DTXSID601336515
313
Warfarin, & salts, conc.>0.3%
81-81-2
DTXSID5023742
100
X 313c
P001
Warfarin sodium
129-06-6
DTXSID7035010
100
100/10,000
100
313c
m -Xylene
108-38-3
DTXSID6026298
1,000
100,000i
313
U239
o-Xylene
95-47-6
DTXSID3021807
1,000
100,000i
313
U239
p-Xylene
106-42-3
DTXSID2021868
100
100,000i
313
U239
Xylene (mixed isomers)
1330-20-7
DTXSID2021446
100
100,000
313
U239
Xylenol
1300-71-6
DTXSID8027375
1,000
1,000,000
2,6-Xylidine
87-62-7
DTXSID8026307
313
Xylylene dichloride
28347-13-9
DTXSID10893081
100/10,000
100
Zinc It
7440-66-6
DTXSID7035012
1,000
Zinc (fume or dust)
7440-66-6
DTXSID7035012
1,000
313
Zinc acetate
557-34-6
DTXSID8038770
1,000
1,000,000
313c
For Reference Only
77
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 (j)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Zinc ammonium chloride
14639-97-5
DTXSID90892315
1,000
1,000,000
313c
Zinc ammonium chloride
14639-98-6
DTXSID20884763
1,000
1,000,000
313c
Zinc ammonium chloride
52628-25-8
DTXSID6052164
5,001
1,000,000
313c
Zinc borate
1332-07-6
DTXSID6091554
1,000
1,000,000
313c
Zinc bromide
7699-45-8
DTXSID8052512
1,000
1,000,000
313c
Zinc carbonate
3486-35-9
DTXSID5049817
1,000
1,000,000
313c
Zinc chloride
7646-85-7
DTXSID2035013
1,000
1,000,000
313c
Zinc Compounds
N982
DTXSID301336516
&
313
Zinc cyanide
557-21-1
DTXSID6024385
10
10,000
313c
P121
Zinc, dichloro(4,4-dimethyl-
5((((methylamino)carbonyl)oxy)imino)pe
ntanenitrile)-, (T-4)-
58270-08-9
DTXSID50893080
100/10,000
10
313c
Zinc fluoride
7783-49-5
DTXSID20894882
1,000
1,000,000
313c
Zinc formate
557-41-5
DTXSID70890511
1,000
1,000,000
313c
Zinc hydrosulfite
7779-86-4
DTXSID00894224
1,000
1,000,000
313c
Zinc nitrate
7779-88-6
DTXSID10890636
1,000
1,000,000
313c
Zinc phenolsulfonate
127-82-2
DTXSID1059571
5,000
5,000,000
313c
Zinc phosphide
1314-84-7
DTXSID1024386
100
100,000
500
100
313c
P122
Zinc phosphide (conc. > 10%)
1314-84-7
DTXSID1024386
100
100,000
500
100
313c
P122
Zinc phosphide (conc. <= 10%)
1314-84-7
DTXSID1024386
100
100,000
500
100
313c
U249
Zinc silicofluoride
16871-71-9
DTXSID50884938
5,000
5,000,000
313c
Zinc sulfate
7733-02-0
DTXSID2040315
1,000
1,000,000
313c
Zineb
12122-67-7
DTXSID5021465
313
Ziram
137-30-4
DTXSID0021464
10
P205
Zirconium nitrate
13746-89-9
DTXSID9049821
5,000
5,000,000
Zirconium potassium fluoride
16923-95-8
DTXSID00893979
1,000
1,000,000
Zirconium sulfate
14644-61-2
DTXSID0021466
5,000
5,000,000
Zirconium tetrachloride
10026-11-6
DTXSID1044142
5,000
5,000,000
For Reference Only
78
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Consolidated List of Chemicals
(By CAS Registry Number)
Subject to CAA section 112(r)(7), CERCLA, CWA Section 311, and EPCRA
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Chlorinated Benzenes
N.A.
DTXSID201034315
&
Chlorinated Ethanes
N.A.
DTXSID3028479
&
Chlorinated Naphthalene
N.A.
DTXSID60103485
&
Chloroalkyl Ethers
N.A.
&
Coke Oven Emissions
N.A.
DTXSID7023984
1
313
U209
Creosote
N.A.
DTXSID2023987
1
U051
Cyanides (soluble salts and
N.A.
DTXSID6023991
10
313
DDT and Metabolites
N.A.
DTXSID4020375
&
Endosulfan and Metabolites
N.A.
DTXSID101349927
&
313
U171
Endrin and Metabolites
N.A.
DTXSID6020561
&
Fine mineral fibers c
N.A.
DTXSID301351487
&
Haloethers
N.A.
313
U096
Halomethanes
N.A.
&
X
U096
Heptachlor and Metabolites
N.A.
DTXSID401349883
&
Nitrosa mines
N.A.
DTXSID2074037
&
Organorhodium Complex (PMN-82-147)
N.A.
PMN
10,10,000
10
Perfluorooctanesulfonic acid, salts, &
N.A.
DTXSID3031864
1
Perfluorooctanoic acid, salts, &
N.A.
DTXSID3031864
1
Phthalate Esters
N.A.
DTXSID20872968
&
Polycyclic organic matter8
N.A.
DTXSID701351489
&
For Reference Only
1
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Polynuclear Aromatic Hydrocarbons
N.A.
DTXSID3044043
&
Radionuclides (including Radon)
N.A.
DTXSID001351488
§
313
Antimony Compounds
N010
DTXSID501336398
&
Arsenic Compounds
N020
DTXSID201336399
&
313
Barium Compounds
N040
DTXSID601336408
313
Beryllium Compounds
N050
DTXSID101336415
&
313
Cadmium Compounds
N078
DTXSID801336416
&
Chlorinated Phenols
N084
DTXSID201336737
&
313
Chlorophenols
N084
DTXSID201336737
&
X
U069
Chromium Compounds
N090
DTXSID101336427
&
313
Cobalt Compounds
N096
DTXSID201336432
&
313
Copper Compounds
N100
DTXSID901336433
&
313
Cyanide Compounds
N106
DTXSID601336389
&
313
Diisocyanates (includes only 20
N120
DTXSID601336434
313
Diisononyl Phthalates
N125
Not Available
313
Dioxin and dioxin-like compounds
(includes only 17 chemicals)
N150
DTXSID301336435
313
Ethylenebisdithiocarbamic acid, salts
N171
DTXSID001336436
313
Glycol Ethers d
N230
DTXSID001336450
&
313
Hexabromocyclododecane
N270
DTXSID101336453
313
Lead Compounds
N420
DTXSID601336458
&
313
Manganese Compounds
N450
DTXSID301336459
&
313
Mercury Compounds
N458
DTXSID601336460
&
313
Nickel Compounds
N495
DTXSID301336461
&
313
Nicotine and salts
N503
DTXSID701336463
313
Nitrate compounds (water dissociable)
N511
DTXSID001336505
313
Nonylphenol (includes only 6
N530
DTXSID301336504
313
Nonylphenol Ethoxylates
N535
DTXSID701336506
313
Polybrominated Biphenyls (PBBs)
N575
DTXSID401336507
500
500
Polychlorinated alkanes (C10 to C13)
N583
DTXSID101336508
313
For Reference Only
2
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Polycyclic aromatic compounds
N590
DTXSID801336509
313
Selenium Compounds
N725
DTXSID101336510
&
313
Silver Compounds
N740
DTXSID801336511
&
313
Strychnine and salts
N746
DTXSID501336512
313
Thallium Compounds
N760
DTXSID201336513
&
313
Vanadium Compounds
N770
DTXSID901336514
313
Warfarin and salts
N874
DTXSID601336515
313
Zinc Compounds
N982
DTXSID301336516
&
313
Formaldehyde
50-00-0
DTXSID7020637
15,000
100
100,000
500
100
313
U122
Formaldehyde (solution)
50-00-0
DTXSID7020637
15,000
100
100,000
500
100
X
U122
Mitomycin C
50-07-7
DTXSID2020898
10
500/10,000
10
U010
Ergocalciferol
50-14-6
DTXSID5020233
1,000/10,000
1,000
Cyclophosphamide
50-18-0
DTXSID5020364
10
U058
DDT
50-29-3
DTXSID4020375
1
1,000
U061
Benzo[a]pyrene
50-32-8
DTXSID2020139
1
313-N590
U022
Reserpine
50-55-5
DTXSID7021237
5,000
U200
Piperonyl butoxide
51-03-6
DTXSID1021166
313
Fluorouracil
51-21-8
DTXSID2020634
500/10,000
500
313
5-Fluorouracil
51-21-8
DTXSID2020634
500/10,000
500
X
2,4-Dinitrophenol(7)
51-28-5
DTXSID0020523
10
10,000
313
P048
Epinephrine
51-43-4
DTXSID5022986
1,000
P042
2-Chloro-A/-(2-chloroethyl)-A/-
51-75-2
DTXSID2020975
10
10
X
Mechlorethamine
51-75-2
DTXSID2020975
10
10
X
Nitrogen mustard
51-75-2
DTXSID2020975
10
10
313
Carbamic acid, ethyl ester
51-79-6
DTXSID9021427
100
X
U238
Ethyl carbamate
51-79-6
DTXSID9021427
100
X
U238
For Reference Only
3
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Urethane
51-79-6
DTXSID9021427
100
313
U238
Carbachol chloride
51-83-2
DTXSID9022730
500/10,000
500
Phosphonic acid, (2,2,2-trichloro-1-
52-68-6
DTXSID0021389
100
100,000
X
Trichlorfon
52-68-6
DTXSID0021389
100
100,000
313
Famphur
52-85-7
DTXSID7041966
1,000
313
P097
Dibenz[a,h]anthracene
53-70-3
DTXSID9020409
1
313-N590
U063
2-Acetylaminofluorene
53-96-3
DTXSID0039227
1
313
U005
Nicotine
54-11-5
DTXS ID 1020930
100
100
100
313c
P075
Nicotine and salts
54-11-5
DTXS ID 1020930
100
313c
P075
Pyridine, 3-(1 -methyl-2-pyrrolidinyl)-,(S)-
54-11-5
DTXS ID 1020930
100
100
100
313c
P075
Aminopterin
54-62-6
DTXSID3022588
500/10,000
500
A/-Nitrosodiethylamine
55-18-5
DTXSID2021028
1
313
U174
Benzamide
55-21-0
DTXS ID0021709
313
Fenthion
55-38-9
DTXSID8020620
313
Nitroglycerin
55-63-0
DTXS ID 1021407
10
313
P081
Diisopropylfluorophosphate
55-91-4
DTXS ID 1040667
100
100
100
P043
Isofluorphate
55-91-4
DTXS ID 1040667
100
100
100
P043
Methylthiouracil
56-04-2
DTXSID2020890
10
U164
Carbon tetrachloride
56-23-5
DTXSID8020250
10
10,000
313
U211
Cantharidin
56-25-7
DTXSID7041752
100/10,000
100
Bis(tributyltin) oxide
56-35-9
DTXSID9020166
313
Parathion
56-38-2
DTXS ID7021100
10
10,000
100
10
313
P089
Phosphorothioic acid, 0,0-diethyl-0-(4-
56-38-2
DTXS ID7021100
10
10,000
100
10
X
P089
3-Methylcholanthrene
56-49-5
DTXSID0020862
10
313-N590
U157
Diethylstilbestrol
56-53-1
DTXSID3020465
1
U089
Benz[a]anthracene
56-55-3
DTXS ID5023902
10
313-N590
U018
Coumaphos
56-72-4
DTXSID2020347
10
10,000
100/10,000
10
1,1-Dimethylhydrazine
57-14-7
DTXS ID 1020516
15,000
10
1,000
10
313
U098
Dimethylhydrazine
57-14-7
DTXS ID 1020516
15,000
10
1,000
10
X
U098
Hydrazine, 1,1 -dimethyl-
57-14-7
DTXS ID 1020516
15,000
10
1,000
10
X
U098
Strychnine
57-24-9
DTXSID6023600
10
10,000
100/10,000
10
313c
P108
For Reference Only
4
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Strychnine, and salts
57-24-9
DTXSID6023600
10
10,000
313c
P108
Pentobarbital sodium
57-33-0
DTXSID9021712
313
Phenytoin
57-41-0
DTXSID8020541
313
Physostigmine
57-47-6
DTXSID3023471
100
100/10,000
100
P204
beta-Propiolactone
57-57-8
DTXSID8021197
10
500
10
313
Physostigmine, salicylate (1:1)
57-64-7
DTXSID80883232
100
100/10,000
100
P188
Chlordane
57-74-9
DTXSID7020267
1
1,000
1,000
1
313
U036
Chlordane (Technical Mixture and
57-74-9
DTXSID7020267
1
1,000
U036
4,7-Methanoindan, 1,2,3,4,5,6,7,8,8-
57-74-9
DTXSID7020267
1
1,000
1,000
1
X
U036
7,12-Dimethylbenz[a]anthracene
57-97-6
DTXSID1020510
1
313-N590
U094
Phenoxarsine, 10,10'-oxydi-
58-36-6
DTXSID0032443
500/10,000
500
313c
Cyclohexane, 1,2,3,4,5,6-hexachloro-
58-89-9
DTXSID2020686
1
1,000
1,000/10,000
1
X
U129
Hexachlorocyclohexane (gamma
58-89-9
DTXSID2020686
1
1,000
1,000/10,000
1
X
U129
Lindane
58-89-9
DTXSID2020686
1
1,000
1,000/10,000
1
313
U129
2,3,4,6-Tetrachlorophenol
58-90-2
DTXSID9021716
10
313c
p-Chloro-m -cresol
59-50-7
DTXSID4021717
5,000
U039
Phenylhydrazine hydrochloride
59-88-1
DTXSID3021148
1,000/10,000
1,000
A/-Nitrosomorpholine
59-89-2
DTXSID4021056
1
313
Ethylenediamine-tetraacetic acid
60-00-4
DTXSID6022977
5,000
5,000,000
4-Aminoazobenzene
60-09-3
DTXSID6024460
313
4-Dimethylaminoazobenzene
60-11-7
DTXSID5020491
10
313
U093
Dimethylaminoazobenzene
60-11-7
DTXSID5020491
10
X
U093
Ethane, 1,1'-oxybis-
60-29-7
DTXSID3021720
10,000
100
U117
Ethyl ether
60-29-7
DTXSID3021720
10,000
100
U117
Hydrazine, methyl-
60-34-4
DTXSID4020874
15,000
10
500
10
X
P068
Methyl hydrazine
60-34-4
DTXSID4020874
15,000
10
500
10
313
P068
Acetamide
60-35-5
DTXSID7020005
100
313
Strychnine, sulfate
60-41-3
DTXSID8021721
10
100/10,000
10
313c
Dimethoate
60-51-5
DTXSID7020479
10
500/10,000
10
313
P044
Dieldrin
60-57-1
DTXSID9020453
1
1,000
P037
Amitrole
61-82-5
DTXSID0020076
313
U011
For Reference Only
5
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Phenylmercuric acetate
62-38-4
DTXSID7021150
100
500/10,000
100
313c
P092
Phenylmercury acetate
62-38-4
DTXSID7021150
100
500/10,000
100
313c
P092
Phenacetin
62-44-2
DTXSID1021116
100
U187
Ethyl methanesulfonate
62-50-0
DTXSID6025309
1
U119
Aniline
62-53-3
DTXSID8020090
5,000
5,000,000
1,000
5,000
313
U012
Thioacetamide
62-55-5
DTXSID9021340
10
313
U218
Thiourea
62-56-6
DTXSID9021348
10
313
U219
Dichlorvos
62-73-7
DTXSID5020449
10
10,000
1,000
10
313
Phosphoric acid, 2-dichloroethenyl
62-73-7
DTXSID5020449
10
10,000
1,000
10
X
Fluoroacetic acid, sodium salt
62-74-8
DTXSID8024311
10
10/10,000
10
X
P058
Sodium fluoroacetate
62-74-8
DTXSID8024311
10
10/10,000
10
313
P058
Methanamine, A/-methyl-A/-nitroso-
62-75-9
DTXSID7021029
10
1,000
10
X
P082
A/-Nitrosodimethylamine
62-75-9
DTXSID7021029
10
1,000
10
313
P082
Nitrosodimethylamine
62-75-9
DTXSID7021029
10
1,000
10
X
P082
Carbaryl
63-25-2
DTXSID9020247
100
100,000
313
U279
1-Naphthalenol, methylcarbamate
63-25-2
DTXSID9020247
100
100,000
X
U279
Phenol, 3-(1-methylethyl)-,
64-00-6
DTXSID1040324
10
500/10,000
10
P202
Formic acid
64-18-6
DTXSID2024115
5,000
5,000,000
313
U123
Acetic acid
64-19-7
DTXSID5024394
5,000
5,000,000
Diethyl sulfate
64-67-5
DTXS ID 1024045
10
313
Tetracycline hydrochloride
64-75-5
DTXSID6021321
313
Colchicine
64-86-8
DTXSID5024845
10/10,000
10
Nicotine sulfate
65-30-5
DTXSID8021725
100
100/10,000
100
313c
Benzoic acid
65-85-0
DTXSID6020143
5,000
5,000,000
Uracil mustard
66-75-1
DTXSID8026270
10
U237
Cycloheximide
66-81-9
DTXSID6024882
100/10,000
100
For Reference Only
6
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Methanol
67-56-1
DTXSID2021731
5,000
313
U154
Isopropyl alcohol (mfg-strong acid
67-63-0
DTXSID7020762
313
Acetone
67-64-1
DTXSID8021482
5,000
U002
Chloroform
67-66-3
DTXS ID 1020306
20,000
10
10,000
10,000
10
313
U044
Methane, trichloro-
67-66-3
DTXS ID 1020306
20,000
10
10,000
10,000
10
X
U044
Hexachloroethane
67-72-1
DTXSID7020689
100
313
U131
Dimethylformamide
68-12-2
DTXSID6020515
100
X
A/,A/-Dimethylformamide
68-12-2
DTXSID6020515
100
313
Triaziquone
68-76-8
DTXSID1021370
313
Guanidine, A/-methyl-A/'-nitro-A/-nitroso-
70-25-7
DTXSID2020846
10
U163
Hexachlorophene
70-30-4
DTXSID6020690
100
313
U132
Propiophenone, 4'-amino
70-69-9
DTXSID7021738
100/10,000
100
n -Butyl alcohol
71-36-3
DTXS ID 1021740
5,000
313
U031
Benzene a
71-43-2
DTXSID3039242
10
10,000
313
U019
Methyl chloroform
71-55-6
DTXSID0021381
1,000
X
U226
1,1,1-Trichloroethane
71-55-6
DTXSID0021381
1,000
313
U226
Digitoxin
71-63-6
DTXSID0022933
100/10,000
100
Endrin
72-20-8
DTXSID6020561
1
1,000
500/10,000
1
P051
Benzene, 1,1'-(2,2,2-
72-43-5
DTXSID9020827
1
1,000
X
U247
Methoxychlor
72-43-5
DTXSID9020827
1
1,000
313
U247
DDD
72-54-8
DTXSID4020373
1
1,000
U060
DDE b
72-55-9
DTXSID9020374
1
Trypan blue
72-57-1
DTXSID4026268
10
313
U236
For Reference Only
7
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Methane
74-82-8
DTXSID8025545
10,000
Bromomethane
74-83-9
DTXSID8020832
1,000
1,000
1,000
313
U029
Methyl bromide
74-83-9
DTXSID8020832
1,000
1,000
1,000
X
U029
Ethane
74-84-0
DTXSID6026377
10,000
Ethene
74-85-1
DTXSID1026378
10,000
X
Ethylene
74-85-1
DTXSID1026378
10,000
313
Acetylene
74-86-2
DTXSID6026379
10,000
Ethyne
74-86-2
DTXSID6026379
10,000
Chloromethane
74-87-3
DTXSID0021541
10,000
100
313
U045
Methane, chloro-
74-87-3
DTXSID0021541
10,000
100
X
U045
Methyl chloride
74-87-3
DTXSID0021541
10,000
100
X
U045
Methyl iodide
74-88-4
DTXSID0024187
100
313
U138
Methanamine
74-89-5
DTXSID7025683
10,000
100
100,000
Monomethylamine
74-89-5
DTXSID7025683
10,000
100
100,000
Hydrocyanic acid
74-90-8
DTXSID9024148
2,500
10
10,000
100
10
X
P063
Hydrogen cyanide
74-90-8
DTXSID9024148
2,500
10
10,000
100
10
313
P063
Methanethiol
74-93-1
DTXSID5026382
10,000
100
100,000
500
100
X
U153
Methyl mercaptan
74-93-1
DTXSID5026382
10,000
100
100,000
500
100
313s
U153
Thiomethanol
74-93-1
DTXSID5026382
10,000
100
100,000
500
100
X
U153
Methylene bromide
74-95-3
DTXSID4021557
1,000
313
U068
Propane
74-98-6
DTXSID5026386
10,000
Propyne
74-99-7
DTXSID0026387
10,000
1-Propyne
74-99-7
DTXSID0026387
10,000
Chloroethane
75-00-3
DTXS ID 1020302
10,000
100
313
Ethane, chloro-
75-00-3
DTXS ID 1020302
10,000
100
X
Ethyl chloride
75-00-3
DTXS ID 1020302
10,000
100
X
Ethene, chloro-
75-01-4
DTXS ID8021434
10,000
1
X
U043
Vinyl chloride
75-01-4
DTXS ID8021434
10,000
1
313
U043
For Reference Only
8
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Ethene, fluoro-
75-02-5
DTXSID3021435
10,000
Vinyl fluoride
75-02-5
DTXSID3021435
10,000
313
Ethanamine
75-04-7
DTXSID8025678
10,000
100
100,000
Monoethylamine
75-04-7
DTXSID8025678
10,000
100
100,000
Acetonitrile
75-05-8
DTXSID7020009
5,000
313
U003
Acetaldehyde
75-07-0
DTXSID5039224
10,000
1,000
1,000,000
313
U001
Ethanethiol
75-08-1
DTXSID9026394
10,000
Ethyl mercaptan
75-08-1
DTXSID9026394
10,000
Dichloromethane
75-09-2
DTXSID0020868
1,000
313
U080
Methylene chloride
75-09-2
DTXSID0020868
1,000
X
U080
Formamide
75-12-7
DTXSID8025337
313
Carbon disulfide
75-15-0
DTXSID6023947
20,000
100
100,000
10,000
100
313
P022
Cyclopropane
75-19-4
DTXSID4058786
10,000
Calcium carbide
75-20-7
DTXSID4026399
10
10,000
Ethylene oxide
75-21-8
DTXSID0020600
10,000
10
1,000
10
313
U115
Oxirane
75-21-8
DTXSID0020600
10,000
10
1,000
10
X
U115
Bromoform
75-25-2
DTXSID1021374
100
313
U225
Tribromomethane
75-25-2
DTXSID1021374
100
X
U225
Dichlorobromomethane
75-27-4
DTXSID1020198
5,000
313
Isobutane
75-28-5
DTXSID1026401
10,000
Propane, 2-methyl
75-28-5
DTXSID1026401
10,000
Isopropyl chloride
75-29-6
DTXSID6047739
10,000
Propane, 2-chloro-
75-29-6
DTXSID6047739
10,000
Isopropylamine
75-31-0
DTXSID2025682
10,000
2-Propanamine
75-31-0
DTXSID2025682
10,000
1,1-Dichloroethane
75-34-3
DTXSID1020437
1,000
X
U076
Ethylidene dichloride
75-34-3
DTXSID1020437
1,000
313
U076
1,1-Dichloroethylene
75-35-4
DTXSID8021438
10,000
100
100,000
X
U078
For Reference Only
9
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Ethene, 1,1-dichloro-
75-35-4
DTXSID8021438
10,000
100
100,000
X
U078
Vinylidene chloride
75-35-4
DTXSID8021438
10,000
100
100,000
313
U078
Acetyl chloride (1)
75-36-5
DTXSID2023852
5,000
5,000,000
U006
Difluoroethane
75-37-6
DTXSID0024050
10,000
Ethane, 1,1-difluoro-
75-37-6
DTXSID0024050
10,000
Ethene, 1,1-difluoro-
75-38-7
DTXSID3021439
10,000
Vinylidene fluoride
75-38-7
DTXSID3021439
10,000
Dichlorofluoromethane
75-43-4
DTXSID7052498
313
HCFC-21
75-43-4
DTXSID7052498
X
Carbonic dichloride
75-44-5
DTXSID0024260
500
10
10,000
10
10
X
P095
Phosgene
75-44-5
DTXSID0024260
500
10
10,000
10
10
313
P095
Chlorodifluoromethane
75-45-6
DTXSID6020301
313
HCFC-22
75-45-6
DTXSID6020301
X
Methanamine, N,N-dimethyl-
75-50-3
DTXSID2026238
10,000
100
100,000
Trimethylamine
75-50-3
DTXSID2026238
10,000
100
100,000
Nitromethane
75-52-5
DTXSID2020977
313
Aziridine, 2-methyl
75-55-8
DTXSID8024286
10,000
1
10,000
1
X
P067
Propyleneimine
75-55-8
DTXSID8024286
10,000
1
10,000
1
313
P067
Oxirane, methyl-
75-56-9
DTXSID5021207
10,000
100
100,000
10,000
100
X
Propylene oxide
75-56-9
DTXSID5021207
10,000
100
100,000
10,000
100
313
Cacodylic acid
75-60-5
DTXSID7020508
1
U136
Bromotrifluoromethane
75-63-8
DTXSID5026415
313
Halon 1301
75-63-8
DTXSID5026415
X
tert-Butylamine
75-64-9
DTXSID5024681
1,000
1,000,000i
tert-Butyl alcohol
75-65-0
DTXSID8020204
313
1-Chloro-1,1-difluoroethane
75-68-3
DTXSID9023960
313
HCFC-142b
75-68-3
DTXSID9023960
X
CFC-11
75-69-4
DTXSID5021384
5,000
X
U121
Trichlorofluoromethane
75-69-4
DTXSID5021384
5,000
313
U121
For Reference Only
10
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Trichloromonofluoromethane
75-69-4
DTXSID5021384
5,000
X
U121
CFC-12
75-71-8
DTXSID6020436
5,000
X
U075
Dichlorodifluoromethane
75-71-8
DTXSID6020436
5,000
313
U075
CFC-13
75-72-9
DTXSID4052500
X
Chlorotrifluoromethane
75-72-9
DTXSID4052500
313
Plumbane, tetramethyl-
75-74-1
DTXSID0026123
10,000
100
100
Tetramethyllead
75-74-1
DTXSID0026123
10,000
100
100
313c
Silane, tetramethyl-
75-76-3
DTXSID9026423
10,000
Tetramethylsilane
75-76-3
DTXSID9026423
10,000
Silane, chlorotrimethyl-
75-77-4
DTXSID2024822
10,000
1,000
1,000
Trimethylchlorosilane
75-77-4
DTXSID2024822
10,000
1,000
1,000
Dimethyldichlorosilane
75-78-5
DTXSID9026425
5,000
500
500
Silane, dichlorodimethyl-
75-78-5
DTXSID9026425
5,000
500
500
Methyltrichlorosilane
75-79-6
DTXSID4026426
5,000
500
500
Silane, trichloromethyl-
75-79-6
DTXSID4026426
5,000
500
500
Acetone cyanohydrin
75-86-5
DTXSID7025427
10
10,000
1,000
10
X
P069
2-Methyllactonitrile
75-86-5
DTXSID7025427
10
10,000
1,000
10
313
P069
Acetaldehyde, trichloro-
75-87-6
DTXSID7024744
5,000
U034
2-Chloro-1,1,1-trifluoroethane
75-88-7
DTXSID5020289
313
HCFC-133a
75-88-7
DTXSID5020289
X
2,2-Dichloropropionic acid
75-99-0
DTXSID2021575
5,000
5,000,000
Pentachloroethane
76-01-7
DTXSID7021104
10
313
U184
Trichloroacetyl chloride
76-02-8
DTXSID9034070
500
500
313
Chloropicrin
76-06-2
DTXSID0020315
313
Freon 113
76-13-1
DTXSID6021377
313
CFC-114
76-14-2
DTXSID8026434
X
Dichlorotetrafluoroethane
76-14-2
DTXSID8026434
313
CFC-115
76-15-3
DTXSID3026435
X
Monochloropentafluoroethane
76-15-3
DTXSID3026435
313
Heptachlor
76-44-8
DTXSID3020679
1
1,000
313
P059
For Reference Only
11
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
1,4,5,6,7,8,8-Heptachloro-3a,4,7,7a-
76-44-8
DTXSID3020679
1
1,000
X
P059
Triphenyltin hydroxide
76-87-9
DTXSID1021409
313
Phenolphthalein
77-09-8
DTXSID0021125
313
Hexachlorocyclopentadiene
77-47-4
DTXSID2020688
10
10,000
100
10
313
U130
Dicyclopentadiene
77-73-6
DTXSID5025023
313
Dimethyl sulfate
77-78-1
DTXSID5024055
100
500
100
313
U103
Tabun
77-81-6
DTXSID80861631
10
10
Tetraethyl lead
78-00-2
DTXSID7023801
10
10,000
100
10
313c
P110
Dioxathion
78-34-2
DTXSID9020534
500
500
S,S,S-Tributyltrithiophosphate
78-48-8
DTXSID1024174
313
Amiton
78-53-5
DTXSID6058184
500
500
Isophorone
78-59-1
DTXSID8020759
5,000
Oxetane, 3,3-bis(chloromethyl)-
78-71-7
DTXSID9058816
500
500
Butane, 2-methyl-
78-78-4
DTXSID8025468
10,000
Isopentane
78-78-4
DTXSID8025468
10,000
1,3-Butadiene, 2-methyl-
78-79-5
DTXSID2020761
10,000
100
100,000
Isoprene
78-79-5
DTXSID2020761
10,000
100
100,000
313
iso-Butylamine
78-81-9
DTXSID9025459
1,000
1,000,000i
Isobutyronitrile
78-82-0
DTXSID5026461
20,000
1,000
1,000
Propanenitrile, 2-methyl-
78-82-0
DTXSID5026461
20,000
1,000
1,000
Isobutyl alcohol
78-83-1
DTXSID0021759
5,000
U140
Isobutyraldehyde
78-84-2
DTXSID9021635
313
1,2-Dichloropropane
78-87-5
DTXSID0020448
1,000
1,000,000i
313
U083
Propane 1,2-dichloro-
78-87-5
DTXSID0020448
1,000
1,000,000i
X
U083
2,3-Dichloropropene
78-88-6
DTXSID6025012
100
100,000i
313
sec-Butyl alcohol
78-92-2
DTXSID9021762
313
Methyl ethyl ketone
78-93-3
DTXSID3021516
5,000
U159
For Reference Only
12
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Methyl vinyl ketone
78-94-4
DTXSID3025671
10
10
Lactonitrile
78-97-7
DTXSID6025432
1,000
1,000
1,1-Dichloropropane
78-99-9
DTXSID9058818
1,000
1,000,000i
1,1,2-Trichloroethane
79-00-5
DTXSID5021380
100
313
U227
Trichloroethylene
79-01-6
DTXSID0021383
100
100,000
313
U228
Acrylamide
79-06-1
DTXSID5020027
5,000
1,000/10,000
5,000
313
U007
Propionic acid
79-09-4
DTXSID8025961
5,000
5,000,000
Acrylic acid
79-10-7
DTXSID0039229
5,000
313
U008
Chloroacetic acid
79-11-8
DTXSID4020901
100
100/10,000
100
313
Thiosemicarbazide
79-19-6
DTXSID9021346
100
100/10,000
100
313
P116
Ethaneperoxoic acid
79-21-0
DTXSID1025853
10,000
500
500
X
Peracetic acid
79-21-0
DTXSID1025853
10,000
500
500
313
Carbonochloridic acid, methylester
79-22-1
DTXSID0024185
5,000
1,000
500
1,000
X
U156
Methyl chlorocarbonate
79-22-1
DTXSID0024185
5,000
1,000
500
1,000
313
U156
Methyl chloroformate
79-22-1
DTXSID0024185
5,000
1,000
500
1,000
X
U156
iso-Butyric acid
79-31-2
DTXSID4021636
5,000
5,000,000i
1,1,2,2-Tetrachloroethane
79-34-5
DTXSID7021318
100
313
U209
Ethene, chlorotrifluoro-
79-38-9
DTXSID3026485
10,000
Trifluorochloroethylene
79-38-9
DTXSID3026485
10,000
Dimethylcarbamoyl chloride
79-44-7
DTXSID1020512
1
313
U097
2-Nitropropane
79-46-9
DTXSID6020981
10
313
U171
Tetrabromobisphenol A
79-94-7
DTXSID1026081
313
4,4'-lsopropylidenediphenol
80-05-7
DTXSID7020182
313
Cumene hydroperoxide
80-15-9
DTXSID3024869
10
313
U096
Hydroperoxide, 1 -methyl-1 -phenylethyl-
80-15-9
DTXSID3024869
10
X
U096
Methyl methacrylate
80-62-6
DTXSID2020844
1,000
1,000,000
313
U162
Methyl 2-chloroacrylate
80-63-7
DTXSID4025585
500
500
Saccharin (manufacturing)
81-07-2
DTXSID5021251
100
313
U202
Saccharin and salts
81-07-2
DTXSID5021251
100
U202
1-Amino-2,4-dibromoanthraquinone
81-49-2
DTXSID4039235
313
For Reference Only
13
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Warfarin
81-81-2
DTXSID5023742
100
500/10,000
100
X 313c
P001
Warfarin, & salts, conc.>0.3%
81-81-2
DTXSID5023742
100
X 313c
P001
C.I. Food Red 15
81-88-9
DTXSID6042369
313
1-Amino-2-methylanthraquinone
82-28-0
DTXSID7020057
313
Diphacinone
82-66-6
DTXSID4032378
10/10,000
10
PCNB
82-68-8
DTXSID2021105
100
X
U185
Pentachloronitrobenzene
82-68-8
DTXSID2021105
100
X
U185
Quintozene
82-68-8
DTXSID2021105
100
313
U185
Acenaphthene
83-32-9
DTXSID3021774
100
Diethyl phthalate
84-66-2
DTXSID7021780
1,000
U088
n -Butyl phthalate
84-74-2
DTXSID2021781
10
10,000
X
U069
Dibutyl phthalate
84-74-2
DTXSID2021781
10
10,000
313
U069
Diquat
85-00-7
DTXSID3024075
1,000
1,000,000
Phenanthrene
85-01-8
DTXSID6024254
5,000
313
Phthalic anhydride
85-44-9
DTXSID2021159
5,000
313
U190
Butyl benzyl phthalate
85-68-7
DTXSID3020205
100
A/-Nitrosodiphenylamine
86-30-6
DTXSID6021030
100
313
Azinphos-methyl
86-50-0
DTXSID3020122
1
1,000
10/10,000
1
Guthion
86-50-0
DTXSID3020122
1
1,000
10/10,000
1
Fluorene
86-73-7
DTXSID8024105
5,000
ANTU
86-88-4
DTXSID8020919
100
500/10,000
100
P072
Thiourea, 1-naphthalenyl-
86-88-4
DTXSID8020919
100
500/10,000
100
P072
1,2,3-Trichlorobenzene
87-61-6
DTXSID8026193
313
2,6-Xylidine
87-62-7
DTXSID8026307
313
2,6-Dichlorophenol
87-65-0
DTXSID2025004
100
U082
Hexachloro-1,3-butadiene
87-68-3
DTXSID7020683
1
313
U128
Hexachlorobutadiene
87-68-3
DTXSID7020683
1
X
U128
PCP
87-86-5
DTXSID7021106
10
10,000
X
Pentachlorophenol
87-86-5
DTXSID7021106
10
10,000
313
Aniline, 2,4,6-trimethyl-
88-05-1
DTXSID5043847
500
500
For Reference Only
14
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
2,4,6-Trichlorophenol
88-06-2
DTXSID5021386
10
10,000i
313
o-Nitrotoluene
88-72-2
DTXSID4025791
1,000
1,000,000i
313
2-Nitrophenol
88-75-5
DTXSID1021790
100
100,000i
313
Dinitrobutyl phenol
88-85-7
DTXSID3020207
1,000
100/10,000
1,000
313
P020
Dinoseb
88-85-7
DTXSID3020207
1,000
100/10,000
1,000
X
P020
Picric acid
88-89-1
DTXSID4025909
313
o-Anisidine
90-04-0
DTXSID5023877
100
313
2-Phenylphenol
90-43-7
DTXSID2021151
313
Michler's ketone
90-94-8
DTXSID2020894
313
Benzene, 1,3-diisocyanato-2-methyl-
91-08-7
DTXSID2026157
10,000
100
100
100
X
Toluene-2,6-diisocyanate
91-08-7
DTXSID2026157
10,000
100
100
100
313
Naphthalene
91-20-3
DTXSID8020913
100
100,000
313
U165
Quinoline
91-22-5
DTXSID1021798
5,000
5,000,000
313
o-Nitroanisole
91-23-6
DTXSID3020962
313
2-Chloronaphthalene
91-58-7
DTXSID8023971
5,000
U047
beta -Naphthylamine
91-59-8
DTXSID2020921
10
313
U168
A/,A/-Diethylaniline
91-66-7
DTXSID8021800
1,000
Methapyrilene
91-80-5
DTXSID2023278
5,000
U155
3,3'-Dimethoxybenzidine-4,4'-
91-93-0
DTXSID6020484
313-N120
3,3'-Dichlorobenzidine
91-94-1
DTXSID6020432
1
313
U073
3,3'-Dimethyl-4,4'-diphenylene
91-97-4
DTXSID7041463
313-N120
Biphenyl
92-52-4
DTXSID4020161
100
313
4-Aminobiphenyl
92-67-1
DTXSID5020071
1
313
Benzidine
92-87-5
DTXSID2020137
1
313
U021
4-Nitrobiphenyl
92-93-3
DTXSID9041522
10
313
Methyleugenol
93-15-2
DTXSID5025607
313
Mecoprop
93-65-2
DTXSID9024194
313
Silvex (2,4,5-TP)
93-72-1
DTXSID0021387
100
100,000
2,4,5-T acid
93-76-5
DTXSID5021388
1,000
1,000,000
2,4,5-T esters
93-79-8
DTXSID7026073
1,000
1,000,000
2,4-D Esters
94-11-1
DTXSID5020445
100
100,000
X
For Reference Only
15
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
2,4-D isopropyl ester
94-11-1
DTXSID5020445
100
100,000
313
Benzoyl peroxide
94-36-0
DTXSID6024591
313
Dihydrosafrole
94-58-6
DTXSID7020475
10
313
U090
Safrole
94-59-7
DTXSID0021254
100
313
U203
MCPA
94-74-6
DTXSID4024195
X
Methoxone
94-74-6
DTXSID4024195
313
Acetic acid, (2,4-dichlorophenoxy)-
94-75-7
DTXSID0020442
100
100,000
X
U240
2,4-D
94-75-7
DTXSID0020442
100
100,000
313
U240
2,4-D Acid
94-75-7
DTXSID0020442
100
100,000
X
U240
2,4-D, salts and esters
94-75-7
DTXSID0020442
100
100,000
U240
2,4-D Esters
94-79-1
DTXSID60916714
100
100,000
2,4-D butyl ester
94-80-4
DTXSID5020443
100
100,000i
313
2,4-D Esters
94-80-4
DTXSID5020443
100
100,000i
X
2,4-DB
94-82-6
DTXSID7024035
313
Benzene, o-dimethyl-
95-47-6
DTXSID3021807
1,000
100,000i
X
U239
o-Xylene
95-47-6
DTXSID3021807
1,000
100,000i
313
U239
o-Cresol
95-48-7
DTXSID8021808
100
100,000i
1,000/10,000
100
313
U052
o-Dichlorobenzene
95-50-1
DTXSID6020430
100
100,000i
X
U070
1,2-Dichlorobenzene
95-50-1
DTXSID6020430
100
100,000i
313
U070
o-Toluidine
95-53-4
DTXSID1026164
100
313
U328
1,2-Phenylenediamine
95-54-5
DTXSID3025881
313
2-Chlorophenol
95-57-8
DTXSID5021544
100
U048
1,2,4-Trimethylbenzene
95-63-6
DTXSID6021402
313
p-Chloro-o-toluidine
95-69-2
DTXSID1041508
313
2,4-Diaminotoluene
95-80-7
DTXSID4020402
10
313
1,2,4,5-Tetrachlorobenzene
95-94-3
DTXSID7024320
5,000
U207
2,4,5-Trichlorophenol
95-95-4
DTXSID4024359
10
10,000i
313
Styrene oxide
96-09-3
DTXSID2021286
100
313
DBCP
96-12-8
DTXSID3020413
1
X
U066
1,2-Dibromo-3-chloropropane
96-12-8
DTXSID3020413
1
313
U066
For Reference Only
16
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
1,2,3-Trichloropropane
96-18-4
DTXSID9021390
313
1,3-Dichloro-2-propanol
96-23-1
DTXSID6025010
313
Methyl acrylate
96-33-3
DTXSID0024183
313
Ethylene thiourea
96-45-7
DTXSID5020601
10
313
U116
Dichlorophene
97-23-4
DTXSID6021824
313
C.I. Solvent Yellow 3
97-56-3
DTXS ID 1020069
313
Ethyl methacrylate
97-63-2
DTXSID1025308
1,000
U118
Furfural
98-01-1
DTXS ID 1020647
5,000
5,000,000
U125
Benzenearsonic acid
98-05-5
DTXSID6059158
10/10,000
10
Benzoic trichloride
98-07-7
DTXSID1020148
10
100
10
313
U023
Benzotrichloride
98-07-7
DTXSID1020148
10
100
10
X
U023
Benzenesulfonyl chloride
98-09-9
DTXSID1026619
100
U020
Trichlorophenylsilane
98-13-5
DTXSID5026621
500
500
Benzenamine, 3-(trifluoromethyl)-
98-16-8
DTXSID9024512
500
500
Cumene
98-82-8
DTXSID1021827
5,000
313
U055
Acetophenone
98-86-2
DTXSID6021828
5,000
313
U004
Benzal chloride
98-87-3
DTXSID6025014
5,000
500
5,000
313
U017
Benzoyl chloride
98-88-4
DTXSID9026631
1,000
1,000,000
313
Nitrobenzene
98-95-3
DTXSID3020964
1,000
1,000,000
10,000
1,000
313
U169
m-Nitrotoluene
99-08-1
DTXSID5021831
1,000
1,000,000i
Dichloran
99-30-9
DTXSID2020426
313
1,3,5-Trinitrobenzene
99-35-4
DTXS ID6021406
10
U234
5-Nitro-o-toluidine
99-55-8
DTXSID4020959
100
313
U181
5-Nitro-o -anisidine
99-59-2
DTXSID0020943
313
m-Dinitrobenzene
99-65-0
DTXSID9024065
100
100,000i
313
Dimethyl-p-phenylenediamine
99-98-9
DTXSID6025149
10/10,000
10
p-Nitrotoluene
99-99-0
DTXSID5023792
1,000
1,000,000i
For Reference Only
17
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
p-Nitroaniline
100-01-6
DTXSID8020961
5,000
313
P077
4-Nitrophenol
100-02-7
DTXSID0021834
100
100,000i
313
U170
p-Nitrophenol
100-02-7
DTXSID0021834
100
100,000i
X
U170
Benzene, 1 -(chloromethyl)-4-nitro-
100-14-1
DTXSID4025745
500/10,000
500
p-Dinitrobenzene
100-25-4
DTXSID0021836
100
100,000i
313
Ethylbenzene
100-41-4
DTXSID3020596
1,000
1,000,000
313
Styrene
100-42-5
DTXSID2021284
1,000
1,000,000
313
Benzyl chloride
100-44-7
DTXSID0020153
100
100,000
500
100
313
P028
Benzonitrile
100-47-0
DTXSID7021491
5,000
5,000,000
A/-Nitrosopiperidine
100-75-4
DTXSID8021060
10
313
U179
Anilazine
101-05-3
DTXSID9020089
313
MBOCA
101-14-4
DTXSID5020865
10
X
U158
4,4'-Methylenebis(2-chloroaniline)
101-14-4
DTXSID5020865
10
313
U158
Barban
101-27-9
DTXSID3041617
10
U280
4-Bromophenyl phenyl ether
101-55-3
DTXSID8023927
100
U030
4,4'-Methylenebis(A/,A/-
101-61-1
DTXSID5020869
313
MDI
101-68-8
DTXSID7025180
5,000
X
Methylenebis(phenylisocyanate)
101-68-8
DTXSID7025180
5,000
X
4,4'-Methylenedi(phenyl isocyanate)
101-68-8
DTXSID7025180
5,000
313-N120
4,4'-Methylenedianiline
101-77-9
DTXSID6022422
10
313
4,4'-Diaminodiphenyl ether
101-80-4
DTXSID0021094
313
Diglycidyl resorcinol ether
101-90-6
DTXSID2020470
313
Isocyanic acid, 3,4-dichlorophenyl ester
102-36-3
DTXSID9033008
500/10,000
500
Phenylthiourea
103-85-5
DTXSID9021134
100
100/10,000
100
P093
p-Chlorophenyl isocyanate
104-12-1
DTXSID7040732
313
4-Nonylphenol
104-40-5
DTXSID5033836
313-N530
For Reference Only
18
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
1,4-Phenylene diisocyanate
104-49-4
DTXSID3025883
313-N120
p-Anisidine
104-94-9
DTXSID7024532
313
sec-Butyl acetate
105-46-4
DTXSID0047612
5,000
5,000,000i
2,4-Dimethylphenol
105-67-9
DTXSID2021864
100
313
U101
Benzene, p-dimethyl-
106-42-3
DTXSID2021868
100
100,000i
X
U239
p-Xylene
106-42-3
DTXSID2021868
100
100,000i
313
U239
p-Cresol
106-44-5
DTXSID7021869
100
100,000i
313
U052
1,4-Dichlorobenzene
106-46-7
DTXS ID 1020431
100
100,000i
313
U072
p-Chloroaniline
106-47-8
DTXSID9020295
1,000
313
P024
p-Toluidine
106-49-0
DTXS ID6021872
100
U353
p-Phenylenediamine
106-50-3
DTXSID9021138
5,000
313
p-Benzoquinone
106-51-4
DTXSID6020145
10
X
U197
Quinone
106-51-4
DTXSID6020145
10
313
U197
1,2-Butylene oxide
106-88-7
DTXSID6020569
100
313
Epichlorohydrin
106-89-8
DTXS ID 1020566
20,000
100
100,000
1,000
100
313
U041
Oxirane, (chloromethyl)-
106-89-8
DTXS ID 1020566
20,000
100
100,000
1,000
100
X
U041
1,2-Dibromoethane
106-93-4
DTXSID3020415
1
1,000
313
U067
Ethylene dibromide
106-93-4
DTXSID3020415
1
1,000
X
U067
1-Bromopropane
106-94-5
DTXS ID6021874
1
313
Propargyl bromide
106-96-7
DTXSID3042340
10
10
Butane
106-97-8
DTXSID7024665
10,000
1-Butene
106-98-9
DTXSID1026746
10,000
1,3-Butadiene
106-99-0
DTXSID3020203
10,000
10
313
For Reference Only
19
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
1-Butyne
107-00-6
DTXSID4029141
10,000
Ethyl acetylene
107-00-6
DTXSID4029141
10,000
2-Butene
107-01-7
DTXSID1026748
10,000
Acrolein
107-02-8
DTXSID5020023
5,000
1
1,000
500
1
313
P003
2-Propenal
107-02-8
DTXSID5020023
5,000
1
1,000
500
1
X
P003
Allyl chloride
107-05-1
DTXSID4039231
1,000
1,000,000
313
1,2-Dichloroethane
107-06-2
DTXSID6020438
100
100,000
313
U077
Ethylene dichloride
107-06-2
DTXSID6020438
100
100,000
X
U077
Chloroethanol
107-07-3
DTXSID1021877
500
500
n-Propylamine
107-10-8
DTXSID6021878
5,000
U194
Allylamine
107-11-9
DTXSID8024440
10,000
500
500
313
2-Propen-1-amine
107-11-9
DTXSID8024440
10,000
500
500
X
Ethyl cyanide
107-12-0
DTXSID1021879
10,000
10
500
10
P101
Propanenitrile
107-12-0
DTXSID1021879
10,000
10
500
10
P101
Propionitrile
107-12-0
DTXSID1021879
10,000
10
500
10
P101
Acrylonitrile
107-13-1
DTXSID5020029
20,000
100
100,000
10,000
100
313
U009
2-Propenenitrile
107-13-1
DTXSID5020029
20,000
100
100,000
10,000
100
X
U009
1,2-Ethanediamine
107-15-3
DTXSID5021881
20,000
5,000
5,000,000
10,000
5,000
Ethylenediamine
107-15-3
DTXSID5021881
20,000
5,000
5,000,000
10,000
5,000
Formaldehyde cyanohydrin
107-16-4
DTXSID3025417
1,000
1,000
Allyl alcohol
107-18-6
DTXSID8020044
15,000
100
100,000
1,000
100
313
P005
2-Propen-1-ol
107-18-6
DTXSID8020044
15,000
100
100,000
1,000
100
X
P005
Propargyl alcohol
107-19-7
DTXSID5021883
1,000
313
P102
Chloroacetaldehyde
107-20-0
DTXSID4020292
1,000
P023
Ethylene glycol
107-21-1
DTXSID8020597
5,000
313
Ethene, methoxy-
107-25-5
DTXSID4026761
10,000
Vinyl methyl ether
107-25-5
DTXSID4026761
10,000
Chloromethyl methyl ether
107-30-2
DTXSID6020307
5,000
10
100
10
313
U046
Methane, chloromethoxy-
107-30-2
DTXSID6020307
5,000
10
100
10
X
U046
Formic acid, methyl ester
107-31-3
DTXSID5025609
10,000
Methyl formate
107-31-3
DTXSID5025609
10,000
For Reference Only
20
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Sarin
107-44-8
DTXSID0042371
10
10
TEPP
107-49-3
DTXSID3034957
10
10,000
100
10
P111
Tetraethyl pyrophosphate
107-49-3
DTXSID3034957
10
10,000
100
10
P111
Butyric acid
107-92-6
DTXSID8021515
5,000
5,000,000
Acetic acid ethenyl ester
108-05-4
DTXSID3021431
15,000
5,000
5,000,000
1,000
5,000
X
Vinyl acetate
108-05-4
DTXSID3021431
15,000
5,000
5,000,000
1,000
5,000
313
Vinyl acetate monomer
108-05-4
DTXSID3021431
15,000
5,000
5,000,000
1,000
5,000
X
Methyl isobutyl ketone
108-10-1
DTXSID5021889
5,000
313
U161
Carbonochloridic acid, 1-methylethyl
108-23-6
DTXSID7026786
15,000
1,000
1,000
Isopropyl chloroformate
108-23-6
DTXSID7026786
15,000
1,000
1,000
Acetic anhydride
108-24-7
DTXSID0024395
5,000
5,000,000
Maleic anhydride
108-31-6
DTXSID7024166
5,000
5,000,000
313
U147
Benzene, m-dimethyl-
108-38-3
DTXSID6026298
1,000
100,000i
X
U239
m -Xylene
108-38-3
DTXSID6026298
1,000
100,000i
313
U239
m -Cresol
108-39-4
DTXSID6024200
100
100,000i
313
U052
1,3-Phenylenediamine
108-45-2
DTXSID4021137
313
Resorcinol
108-46-3
DTXSID2021238
5,000
5,000,000
U201
Bis(2-chloro-1-methylethyl)ether
108-60-1
DTXSID4020167
1,000
313
U027
Dichloroisopropyl ether
108-60-1
DTXSID4020167
1,000
X
U027
Toluene
108-88-3
DTXSID7021360
1,000
1,000,000
313
U220
Chlorobenzene
108-90-7
DTXSID4020298
100
100,000
313
U037
Cyclohexanamine
108-91-8
DTXSID1023996
15,000
10,000
10,000
Cyclohexylamine
108-91-8
DTXSID1023996
15,000
10,000
10,000
Cyclohexanol
108-93-0
DTXSID4021894
313
Cyclohexanone
108-94-1
DTXSID6020359
5,000
U057
Phenol
108-95-2
DTXSID5021124
1,000
1,000,000
500/10,000
1,000
313
U188
Benzenethiol
108-98-5
DTXSID7026811
100
500
100
P014
Thiophenol
108-98-5
DTXSID7026811
100
500
100
P014
2-Methylpyridine
109-06-8
DTXSID9021899
5,000
313
U191
2-Picoline
109-06-8
DTXSID9021899
5,000
X
U191
Carbonochloridic acid, propylester
109-61-5
DTXSID3042342
15,000
500
500
For Reference Only
21
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Propyl chloroformate
109-61-5
DTXSID3042342
15,000
500
500
Pentane
109-66-0
DTXSID2025846
10,000
1-Pentene
109-67-1
DTXSID7025849
10,000
Butylamine
109-73-9
DTXSID1021904
1,000
1,000,000
Malononitrile
109-77-3
DTXSID6021907
1,000
500/10,000
1,000
313
U149
2-Methoxyethanol
109-86-4
DTXSID5024182
313
Diethylamine
109-89-7
DTXSID6021909
100
100,000
Ethene, ethoxy-
109-92-2
DTXSID3029609
10,000
Vinyl ethyl ether
109-92-2
DTXSID3029609
10,000
Ethyl nitrite
109-95-5
DTXSID9046574
10,000
Nitrous acid, ethyl ester
109-95-5
DTXSID9046574
10,000
Furan, tetrahydro-
109-99-9
DTXSID1021328
1,000
U213
Furan
110-00-9
DTXSID6020646
5,000
100
500
100
313
U124
Maleic acid
110-16-7
DTXSID8021517
5,000
5,000,000
Fumaric acid
110-17-8
DTXSID3021518
5,000
5,000,000
iso-Butyl acetate
110-19-0
DTXSID5026837
5,000
5,000,000i
Hexane
110-54-3
DTXSID0021917
5,000
X
n-Hexane
110-54-3
DTXSID0021917
5,000
313
trans-1,4-Dichlorobutene
110-57-6
DTXSID6020434
500
500
X
trans-1,4-Dichloro-2-butene
110-57-6
DTXSID6020434
500
500
313
2-Chloroethyl vinyl ether
110-75-8
DTXSID0051570
1,000
U042
Ethanol, 2-ethoxy-
110-80-5
DTXSID7024087
1,000
X
U359
2-Ethoxyethanol
110-80-5
DTXSID7024087
1,000
313
U359
Cyclohexane
110-82-7
DTXSID4021923
1,000
1,000,000
313
U056
For Reference Only
22
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Pyridine
110-86-1
DTXSID9021924
1,000
313
U196
Piperidine
110-89-4
DTXSID6021165
15,000
1,000
1,000
N-Hyd roxyethy lethy len edi ami ne
111-41-1
DTXSID7025423
313
Diethanolamine
111-42-2
DTXSID3021932
100
313
Bis(2-chloroethyl) ether
111-44-4
DTXSID9020168
10
10,000
10
313
U025
Dichloroethyl ether
111-44-4
DTXSID9020168
10
10,000
10
X
U025
Ethylenebisdithiocarbamic acid, salts &
111-54-6
DTXSID5043972
5,000
X
U114
Adiponitrile
111-69-3
DTXSID3021936
1,000
1,000
Bis(2-chloroethoxy) methane
111-91-1
DTXSID4023917
1,000
313
U024
Phenol, 2-(1-methylethoxy)-,
114-26-1
DTXSID7021948
100
X
U411
Propoxur
114-26-1
DTXSID7021948
100
313
U411
Azaserine
115-02-6
DTXSID9020118
1
U015
Propene
115-07-1
DTXSID5021205
10,000
X
1-Propene
115-07-1
DTXSID5021205
10,000
X
Propylene
115-07-1
DTXSID5021205
10,000
313
Methane, oxybis-
115-10-6
DTXSID8026937
10,000
Methyl ether
115-10-6
DTXSID8026937
10,000
2-Methylpropene
115-11-7
DTXSID9020748
10,000
1-Propene, 2-methyl-
115-11-7
DTXSID9020748
10,000
Trichloroethylsilane
115-21-9
DTXSID7026940
500
500
Dimefox
115-26-4
DTXSID8041870
500
500
Chlorendic acid
115-28-6
DTXSID2020268
313
Endosulfan
115-29-7
DTXS ID 1020560
1
1,000
10/10,000
1
P050
Benzenemethanol, 4-chloro-.alpha.-4-
115-32-2
DTXSID4020450
10
10,000
X
Dicofol
115-32-2
DTXSID4020450
10
10,000
313
Fensulfothion
115-90-2
DTXSID6021953
500
500
Tris(2-chloroethyl) phosphate
115-96-8
DTXS ID5021411
313
Aldicarb
116-06-3
DTXSID0039223
1
100/10,000
1
313
P070
Ethene, tetrafluoro-
116-14-3
DTXSID6021325
10,000
Tetrafluoroethylene
116-14-3
DTXSID6021325
10,000
313
2-Aminoanthraquinone
117-79-3
DTXSID6020068
313
For Reference Only
23
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Dichlone
117-80-6
DTXSID7020425
1
1,000
Bis(2-ethylhexyl)phthalate
117-81-7
DTXSID5020607
100
X
U028
DEHP
117-81-7
DTXSID5020607
100
X
U028
Di(2-ethylhexyl) phthalate
117-81-7
DTXSID5020607
100
313
U028
n-Dioctylphthalate
117-84-0
DTXSID1021956
5,000
U107
Di-n-octyl phthalate
117-84-0
DTXSID1021956
5,000
U107
Hexachlorobenzene
118-74-1
DTXSID2020682
10
313
U127
Isopropylmethylpyrazolyl
119-38-0
DTXSID2020765
100
500
100
P192
3,3'-Dimethoxybenzidine
119-90-4
DTXSID3025091
100
313
U091
3,3'-Dimethylbenzidine
119-93-7
DTXSID5024059
10
313
U095
o-Tolidine
119-93-7
DTXSID5024059
10
X
U095
Anthracene
120-12-7
DTXSID0023878
5,000
313
2,4-DP
120-36-5
DTXSID0020440
313
Isosafrole
120-58-1
DTXSID2020767
100
313
U141
p-Cresidine
120-71-8
DTXSID1020350
313
Catechol
120-80-9
DTXSID3020257
100
313
1,2,4-Trichlorobenzene
120-82-1
DTXSID0021965
100
313
2,4-Dichlorophenol
120-83-2
DTXSID1020439
100
313
U081
2,4-Dinitrotoluene
121-14-2
DTXSID0020529
10
10,000i
313
U105
Pyrethrins
121-21-1
DTXSID4034499
1
1,000
Pyrethrins
121-29-9
DTXSID2042353
1
1,000i
Triethylamine
121-44-8
DTXSID3024366
5,000
5,000,000
313
U404
A/,A/-Dimethylaniline
121-69-7
DTXSID2020507
100
313
Malathion
121-75-5
DTXSID4020791
100
100,000
313
Benzeneethanamine, alpha,alpha-
dimethyl-
122-09-8
DTXSID9023461
5,000
P046
For Reference Only
24
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Simazine
122-34-9
DTXSID4021268
313
Diphenylamine
122-39-4
DTXSID4021975
313
Propham
122-42-9
DTXSID7020766
1000
U373
1,2-Diphenylhydrazine
122-66-7
DTXSID7020710
10
313
U109
Hydrazine, 1,2-diphenyl-
122-66-7
DTXSID7020710
10
X
U109
Hydrazobenzene
122-66-7
DTXSID7020710
10
X
U109
Hydroquinone
123-31-9
DTXSID7020716
100
500/10,000
100
313
Maleic hydrazide
123-33-1
DTXSID9020792
5,000
U148
Propionaldehyde
123-38-6
DTXSID2021658
1,000
313
1,3-Phenylene diisocyanate
123-61-5
DTXSID9044792
313-N120
Propionic anhydride
123-62-6
DTXSID1027007
5,000
5,000,000
Paraldehyde
123-63-7
DTXSID9023419
1,000
313
U182
Butyraldehyde
123-72-8
DTXSID8021513
313
2-Butenal, (e)-
123-73-9
DTXSID6020351
20,000
100
1,000
100
U053
Crotonaldehyde, (E)-
123-73-9
DTXSID6020351
20,000
100
1,000
100
U053
Butyl acetate
123-86-4
DTXSID3021982
5,000
5,000,000
1,4-Dioxane
123-91-1
DTXSID4020533
100
313
U108
iso-Amyl acetate
123-92-2
DTXSID9025453
5000
5,000,000i
Adipic acid
124-04-9
DTXSID7021605
5,000
5,000,000
Dimethylamine
124-40-3
DTXSID5024057
10,000
1,000
1,000,000
313
U092
Methanamine, N-methyl-
124-40-3
DTXSID5024057
10,000
1,000
1,000,000
X
U092
Sodium methylate
124-41-4
DTXSID8027030
1,000
1,000,000
Chlorodibromomethane
124-48-1
DTXS ID 1020300
100
Sodium cacodylate
124-65-2
DTXSID3034408
100/10,000
100
Dibromotetrafluoroethane
124-73-2
DTXSID0041226
313
Halon 2402
124-73-2
DTXSID0041226
X
Picrotoxin
124-87-8
DTXSID7045605
500/10,000
500
Tris(2,3-dibromopropyl) phosphate
126-72-7
DTXSID5021413
10
313
U235
For Reference Only
25
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Methacrylonitrile
126-98-7
DTXSID1024176
10,000
1,000
500
1,000
313
U152
2-Propenenitrile, 2-methyl-
126-98-7
DTXSID1024176
10,000
1,000
500
1,000
X
U152
Chloroprene
126-99-8
DTXSID5020316
100
313
Perchloroethylene
127-18-4
DTXSID2021319
100
X
U210
Tetrachloroethylene
127-18-4
DTXSID2021319
100
313
U210
Zinc phenolsulfonate
127-82-2
DTXSID1059571
5,000
5,000,000
313c
Potassium dimethyldithiocarbamate
128-03-0
DTXSID7034834
313
Sodium dimethyldithiocarbamate
128-04-1
DTXSID6027050
313
C.I. Vat Yellow 4
128-66-5
DTXSID6021454
313
Pyrene
129-00-0
DTXSID3024289
5,000
1,000/10,000
5,000
Warfarin sodium
129-06-6
DTXSID7035010
100
100/10,000
100
313c
1,4-Naphthoquinone
130-15-4
DTXS ID5040704
5,000
U166
Dimethyl phthalate
131-11-3
DTXSID3022455
5,000
313
U102
Sodium pentachlorophenate
131-52-2
DTXSID4040264
313
Ammonium picrate
131-74-8
DTXSID50872815
10
P009
2-Cyclohexyl-4,6-dinitrophenol
131-89-5
DTXSID4024064
100
P034
Sodium o-phenylphenoxide
132-27-4
DTXSID2021153
313
Dibenzofuran
132-64-9
DTXSID2021993
100
313
Captan
133-06-2
DTXSID9020243
10
10,000
313
1 H-lsoindole-1,3(2H)-dione, 3a,4,7,7a-
133-06-2
DTXSID9020243
10
10,000
X
Folpet
133-07-3
DTXSID0021385
313
Benzoic acid, 3-amino-2,5-dichloro-
133-90-4
DTXSID2020262
100
X
Chloramben
133-90-4
DTXSID2020262
100
313
o-Anisidine hydrochloride
134-29-2
DTXSID8020092
313
alpha -Naphthylamine
134-32-7
DTXSID7020920
100
313
U167
Cupferron
135-20-6
DTXS ID 10203 52
313
Dipropyl isocinchomeronate
136-45-8
DTXSID8032544
313
Thiram
137-26-8
DTXSID5021332
10
313
U244
Ziram
137-30-4
DTXS ID0021464
10
P205
Potassi u m N -methyldithi ocarbamate
137-41-7
DTXS ID 1034424
313
For Reference Only
26
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Metham sodium
137-42-8
DTXSID2029167
313
Disodium cyanodithioimidocarbonate
138-93-2
DTXSID6034423
313
Nitrilotriacetic acid
139-13-9
DTXSID6020939
313
3,3'-Dimethyldiphenylmethane-4,4'-
139-25-3
DTXSID3044548
313-N120
4,4'-Thiodianiline
139-65-1
DTXSID9021344
313
Benzyl cyanide
140-29-4
DTXSID2021492
500
500
p-(1,1,3,3-Tetramethylbutyl)phenol
140-66-9
DTXSID9022360
313
Pyridine, 2-methyl-5-vinyl-
140-76-1
DTXSID2059699
500
500
Ethyl acrylate
140-88-5
DTXSID4020583
1,000
313
U113
Butyl acrylate
141-32-2
DTXSID6024676
313
Dicrotophos
141-66-2
DTXSID9023914
100
100
Ethyl acetate
141-78-6
DTXSID1022001
5,000
U112
1,3-Dichloropropane
142-28-9
DTXSID6022004
1000
1,000,000i
Nabam
142-59-6
DTXSID5020603
313
Cupric acetate
142-71-2
DTXSID2059720
100
100,000
313c
Dipropylamine
142-84-7
DTXSID2025185
5,000
U110
Sodium cyanide (Na(CN))
143-33-9
DTXSID4024309
10
10,000
100
10
313c
P106
Kepone
143-50-0
DTXS ID 1020770
1
1,000
U142
Fluoroacetic acid
144-49-0
DTXSID0041981
10/10,000
10
Endothall
145-73-3
DTXSID7024081
1,000
P088
Thiabendazole
148-79-8
DTXSID0021337
313
Melphalan
148-82-3
DTXSID6020804
1
U150
For Reference Only
27
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
2-Mercaptobenzothiazole
149-30-4
DTXS ID 1020807
313
Dichloromethylphenylsilane
149-74-6
DTXSID6029173
1,000
1,000
Merphos
150-50-5
DTXSID6024173
313
Monuron
150-68-5
DTXSID0020311
313
Methoxyethylmercuric acetate
151-38-2
DTXSID4058314
500/10,000
500
313c
Potassium cyanide
151-50-8
DTXSID0024268
10
10,000
100
10
313c
P098
Aziridine
151-56-4
DTXSID8020599
10,000
1
500
1
X
P054
Ethyleneimine
151-56-4
DTXSID8020599
10,000
1
500
1
313
P054
Diphosphoramide, octamethyl-
152-16-9
DTXSID0042373
100
100
100
P085
p-Nitrosodiphenylamine
156-10-5
DTXS ID 1021031
313
cis- 1,2-Dichloroethylene
156-59-2
DTXSID2024030
313i
U079
trans-1,2-Dichloroethylene
156-60-5
DTXSID7024031
1,000
313i
U079
Calcium cyanamide
156-62-7
DTXSID6020353
1,000
313
Benzo[rst]pentaphene
189-55-9
DTXSID9059751
10
313-N590
U064
Dibenz[a,i]pyrene
189-55-9
DTXSID9059751
10
X
U064
Dibenzo[a,h]pyrene
189-64-0
DTXSID4059752
313-N590
Benzo[g,h,i]perylene
191-24-2
DTXS ID5023908
5,000
313
Dibenzo[a,l]pyrene
191-30-0
DTXSID9059753
313-N590
Dibenzo[a,e]pyrene
192-65-4
DTXSID3052690
313-N590
lndeno[1,2,3-cd]pyrene
193-39-5
DTXSID8024153
100
313-N590
U137
7H-Dibenzo[c,g]carbazole
194-59-2
DTXSID9059755
313-N590
Benzo[j]fluoranthene
205-82-3
DTXSID8052691
313-N590
Benzo[b]fluoranthene
205-99-2
DTXSID0023907
1
313-N590
Benzo[j,k]fluorene
206-44-0
DTXSID3024104
313-N590
Fluoranthene
206-44-0
DTXSID3024104
100
X
U120
Benzo[k]fluoranthene
207-08-9
DTXSID0023909
5,000
313-N590
Acenaphthylene
208-96-8
DTXSID3023845
5,000
For Reference Only
28
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Benzo[a]phenanthrene
218-01-9
DTXSID0022432
100
313-N590
U050
Chrysene
218-01-9
DTXSID0022432
100
X
U050
Dibenz[a,j]acridine
224-42-0
DTXSID4059758
313-N590
Benz[c]acridine
225-51-4
DTXSID9059759
100
U016
Dibenz[a,h]acridine
226-36-8
DTXSID3059761
313-N590
Isobenzan
297-78-9
DTXSID3021306
100/10,000
100
0,0-Diethyl O-pyrazinyl
297-97-2
DTXSID8042470
100
500
100
P040
Thionazin
297-97-2
DTXSID8042470
100
500
100
P040
Methyl parathion
298-00-0
DTXSID1020855
100
100,000
100/10,000
100
313
P071
Parathion-methyl
298-00-0
DTXSID1020855
100
100,000
100/10,000
100
X
P071
Phorate
298-02-2
DTXSID4032459
10
10
10
P094
Disulfoton
298-04-4
DTXSID0022018
1
1,000
500
1
P039
For Reference Only
29
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Amphetamine
300-62-9
DTXSID4022600
1,000
1,000
Naled
300-76-5
DTXS ID 1024209
10
10,000
313
Lead acetate
301-04-2
DTXSID6020773
10
10,000
313c
U144
Oxydemeton-methyl
301-12-2
DTXSID8025541
313
Hydrazine
302-01-2
DTXSID3020702
15,000
1
1,000
1
313
U133
Lasiocarpine
303-34-4
DTXS ID 1020772
10
U143
Chlorambucil
305-03-3
DTXSID7020263
10
U035
2,2-Dichloro-1,1,1-trifluoroethane
306-83-2
DTXSID7020712
313
HCFC-123
306-83-2
DTXSID7020712
X
Perfluorohexanoic acid
307-24-4
DTXSID3031862
313
Perfluorooctylsulfonyl fluoride
307-35-7
DTXS ID5027140
313
Perfluorododecanoic acid
307-55-1
DTXS ID8031861
313
Aldrin
309-00-2
DTXSID8020040
1
1,000
500/10,000
1
313
P004
1,4:5,8-Dimethanonaphthalene,
309-00-2
DTXSID8020040
1
1,000
500/10,000
1
X
P004
Diethyl-p-nitrophenyl phosphate
311-45-5
DTXSID6024046
100
P041
Bromacil
314-40-9
DTXSID4022020
313
Mexacarbate
315-18-4
DTXSID7020893
1,000
1,000,000
500/10,000
1,000
P128
Emetine, dihydrochloride
316-42-7
DTXSID7020558
1/10,000
1
alpha-BHC
319-84-6
DTXSID2020684
10
X
alpha -Hexachlorocyclohexane
319-84-6
DTXSID2020684
10
313
beta-BHC
319-85-7
DTXSID7020685
1
delta-BHC
319-86-8
DTXSID5024134
1
Trichloronate
327-98-0
DTXSID9038420
500
500
2,5-Dinitrophenol
329-71-5
DTXSID9022021
10
10,000i
Diuron
330-54-1
DTXSID0020446
100
100,000
313
Linuron
330-55-2
DTXSID2024163
313
Diazinon
333-41-5
DTXSID9020407
1
1,000
313
Diazomethane
334-88-3
DTXSID0024008
100
313
Octanoyl fluoride, pentadecafluoro-
335-66-0
DTXSID0059829
313
For Reference Only
30
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Perfluorooctanoic acid
335-67-1
DTXSID8031865
1
313
1-Heptanesulfonyl fluoride,
335-71-7
DTXSID9059830
313
Perfluorodecanoic acid
335-76-2
DTXSID3031860
313
Silver(l) perfluorooctanoate
335-93-3
DTXSID00880127
313
Sodium perfluorooctanoate
335-95-5
DTXSID40880025
313
Boron trifluoride compound with methyl
353-42-4
DTXSID60893071
15,000
1,000
1,000
Boron, trifluoro[oxybis[methane]]-, (T-4)-
353-42-4
DTXSID60893071
15,000
1,000
1,000
Carbonic difluoride
353-50-4
DTXSID7059858
1,000
U033
Bromochlorodifluoromethane
353-59-3
DTXSID0027147
313
Halon 1211
353-59-3
DTXSID0027147
&
X
HCFC-121a
354-11-0
DTXSID6042020
X
1,1,1,2-Tetrachloro-2-fluoroethane
354-11-0
DTXSID6042020
313
HCFC-121
354-14-3
DTXSID6059863
X
1,1,2,2-Tetrachloro-1-fluoroethane
354-14-3
DTXSID6059863
313
1,2-Dichloro-1,1,2-trifluoroethane
354-23-4
DTXS ID 1042021
313
HCFC-123a
354-23-4
DTXS ID 1042021
X
1-Chloro-1,1,2,2-tetrafluoroethane
354-25-6
DTXSID1042023
313
HCFC-124a
354-25-6
DTXSID1042023
X
Perfluorohexanesulfonic acid
355-46-4
DTXSID7040150
313
Brucine
357-57-3
DTXSID2024662
100
313
P018
Fluoroacetyl chloride
359-06-8
DTXSID4059885
10
10
Ethylene fluorohydrin
371-62-0
DTXSID0059902
10
10
Perfluorobutanoic acid
375-22-4
DTXSID4059916
313
Perfluorobutane sulfonic acid
375-73-5
DTXSID5030030
313
For Reference Only
31
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Perfluorononanoic acid
375-95-1
DTXSID8031863
313
Perfluorotetradecanoic acid
376-06-7
DTXSID3059921
313
2-
376-14-7
DTXSID8059922
313
Methyl perfluorooctanoate
376-27-2
DTXSID8059924
313
Perfluoro-3-methoxypropanoic acid
377-73-1
DTXSID70191136
313
Ergotamine tartrate
379-79-3
DTXSID3025253
500/10,000
500
2-
383-07-3
DTXSID40861915
313
1,2-Dichloro-1,1,2,3,3-
422-44-6
DTXSID6042026
313
HCFC-225bb
422-44-6
DTXSID6042026
X
2,3-Dichloro-1,1,1,2,3-
422-48-0
DTXSID1042025
313
HCFC-225ba
422-48-0
DTXSID1042025
X
3,3-Dichloro-1,1,1,2,2-
422-56-0
DTXSID1042027
313
HCFC-225ca
422-56-0
DTXSID1042027
X
Perfluoropropanoic acid
422-64-0
DTXSID8059970
313
2-
423-82-5
DTXSID3059975
313
1,2-Dichloro-1,1,3,3,3-
431-86-7
DTXSID0042030
313
HCFC-225da
431-86-7
DTXSID0042030
X
Cyanogen
460-19-5
DTXSID1023992
10,000
100
P031
Ethanedinitrile
460-19-5
DTXSID1023992
10,000
100
P031
3-Chloro-1,1,1-trifluoropropane
460-35-5
DTXSID5042033
313
HCFC-253fb
460-35-5
DTXSID5042033
X
Propadiene
463-49-0
DTXSID1029178
10,000
1,2-Propadiene
463-49-0
DTXSID1029178
10,000
Carbon oxide sulfide (COS)
463-58-1
DTXSID6023949
10,000
100
X
Carbonyl sulfide
463-58-1
DTXSID6023949
10,000
100
313
2,2-Dimethylpropane
463-82-1
DTXSID6029179
10,000
Propane, 2,2-dimethyl-
463-82-1
DTXSID6029179
10,000
Isodrin
465-73-6
DTXSID7042065
1
100/10,000
1
313
P060
Chlorfenvinfos
470-90-6
DTXSID7034250
500
500
Auramine
492-80-8
DTXSID7043821
100
X
U014
For Reference Only
32
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
C.I. Solvent Yellow 34
492-80-8
DTXSID7043821
100
313
U014
Chlornaphazine
494-03-1
DTXSID3060087
100
U026
Diaminotoluene
496-72-0
DTXSID9024930
10
U221
Methylmercuric dicyanamide
502-39-6
DTXSID8040309
500/10,000
500
313c
4-Aminopyridine
504-24-5
DTXSID0023870
1,000
500/10,000
1,000
P008
Pyridine, 4-amino-
504-24-5
DTXSID0023870
1,000
500/10,000
1,000
P008
1,3-Pentadiene
504-60-9
DTXSID3027160
10,000
100
U186
Ethane, 1,1'-thiobis[2-chloro-
505-60-2
DTXSID0037100
500
500
X
Mustard gas
505-60-2
DTXSID0037100
500
500
313
Potassium silver cyanide
506-61-6
DTXSID5024269
1
500
1
313c
P099
Silver cyanide
506-64-9
DTXSID9024306
1
313c
P104
Cyanogen bromide
506-68-3
DTXSID9021550
1,000
500/10,000
1,000
313c
U246
Cyanogen chloride
506-77-4
DTXSID4021551
10,000
10
10,000
313c
P033
Cyanogen iodide
506-78-5
DTXSID50870573
1,000/10,000
1,000
313c
Ammonium carbonate
506-87-6
DTXSID5047457
5,000
5,000,000
Acetyl bromide
506-96-7
DTXSID5060140
5,000
5,000,000
1,3-Dichloro-1,1,2,2,3-
507-55-1
DTXSID6042028
313
HCFC-225cb
507-55-1
DTXSID6042028
X
Perfluorooctyl iodide
507-63-1
DTXSID0060147
313
Methane, tetranitro-
509-14-8
DTXSID5021334
10,000
10
500
10
P112
Tetranitromethane
509-14-8
DTXSID5021334
10,000
10
500
10
313
P112
Benzeneacetic acid, 4-chloro-.alpha.-(4-
510-15-6
DTXSID9020299
10
X
U038
Chlorobenzilate
510-15-6
DTXSID9020299
10
313
U038
sec-Butylamine
513-49-5
DTXSID00883416
1,000
1,000,000i
Dithiazanine iodide
514-73-8
DTXSID8022955
500/10,000
500
o-Dinitrobenzene
528-29-0
DTXSID4024066
100
100,000i
313
2-Chloroacetophenone
532-27-4
DTXSID9020293
100
313
Dazomet
533-74-4
DTXSID7024902
313
Bis(chloromethyl) ketone
534-07-6
DTXSID2021577
10/10,000
10
For Reference Only
33
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Dinitrocresol
534-52-1
DTXSID1022053
10
10/10,000
10
X
P047
4,6-Dinitro-o -cresol
534-52-1
DTXSID1022053
10
10/10,000
10
313
P047
4,6-Dinitro-o-cresol and salts
534-52-1
DTXSID1022053
10
P047
Crimidine
535-89-7
DTXSID0041800
100/10,000
100
Ethylbis(2-chloroethyl)amine
538-07-8
DTXSID0060220
500
500
1,2-Dichloroethylene
540-59-0
DTXSID8024991
313
U079
Hydrazine, 1,2-dimethyl-
540-73-8
DTXSID0041228
1
U099
2,2,4-T ri methyl pe nta n e
540-84-1
DTXSID7024370
1,000
tert-Butyl acetate
540-88-5
DTXSID1022055
5,000
5,000,000i
Uranyl acetate
541-09-3
DTXSID3060243
100
100,000
Lewisite
541-25-3
DTXSID3060245
10
10
Ethyl chloroformate
541-41-3
DTXSID1027186
313
Dithio biuret
541-53-7
DTXSID2034968
100
100/10,000
100
X
P049
2,4-Dithiobiuret
541-53-7
DTXSID2034968
100
100/10,000
100
313
P049
1,3-Dichlorobenzene
541-73-1
DTXSID6022056
100
313
U071
Barium cyanide
542-62-1
DTXSID3023895
10
10,000
313c
P013
1,3-Dichloropropene
542-75-6
DTXSID1022057
100
100,000i
X
U084
1,3-Dichloropropylene
542-75-6
DTXSID1022057
100
100,000i
313
U084
3-Chloropropionitrile
542-76-7
DTXSID4030336
1,000
1,000
1,000
313
P027
Propionitrile, 3-chloro-
542-76-7
DTXSID4030336
1,000
1,000
1,000
X
P027
Bis(chloromethyl) ether
542-88-1
DTXSID8020173
1,000
10
100
10
313
P016
Chloromethyl ether
542-88-1
DTXSID8020173
1,000
10
100
10
X
P016
For Reference Only
34
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Dichloromethyl ether
542-88-1
DTXSID8020173
1,000
10
100
10
X
P016
Methane, oxybis[chloro-
542-88-1
DTXSID8020173
1,000
10
100
10
X
P016
Ethylthiocyanate
542-90-5
DTXSID7060259
10,000
10,000
Cadmium acetate
543-90-8
DTXSID1020225
10
10,000
313c
Cobaltous formate
544-18-3
DTXSID1060267
1,000
1,000,000
313c
Copper cyanide
544-92-3
DTXSID7023986
10
313c
P029
Lithium carbonate
554-13-2
DTXSID1023784
313
m-Nitrophenol
554-84-7
DTXSID2025765
100
100,000i
Tris(2-chloroethyl)amine
555-77-1
DTXSID7048744
100
100
Glycidol
556-52-5
DTXSID4020666
313
Isothiocyanatomethane
556-61-6
DTXSID2027204
500
500
X
Methyl isothiocyanate
556-61-6
DTXSID2027204
500
500
313
Methyl thiocyanate
556-64-9
DTXSID5060304
20,000
10,000
10,000
Thiocyanic acid, methyl ester
556-64-9
DTXSID5060304
20,000
10,000
10,000
Nickel cyanide
557-19-7
DTXSID60971065
10
313c
P074
Zinc cyanide
557-21-1
DTXSID6024385
10
10,000
313c
P121
Zinc acetate
557-34-6
DTXSID8038770
1,000
1,000,000
313c
Zinc formate
557-41-5
DTXSID70890511
1,000
1,000,000
313c
2-Chloropropylene
557-98-2
DTXSID4040262
10,000
1-Propene, 2-chloro-
557-98-2
DTXSID4040262
10,000
Methanesulfonyl fluoride
558-25-8
DTXSID8060329
1,000
1,000
Ethion
563-12-2
DTXSID2024086
10
10,000
1,000
10
Semicarbazide hydrochloride
563-41-7
DTXSID4020244
1,000/10,000
1,000
3-Methyl-1-butene
563-45-1
DTXSID7060336
10,000
2-Methyl-1-butene
563-46-2
DTXSID3052224
10,000
3-Chloro-2-methyl-1 -propene
563-47-3
DTXSID1020279
313
For Reference Only
35
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Thallium(l) acetate
563-68-8
DTXSID6024331
100
313c
U214
C.I. Basic Green 4
569-64-2
DTXSID1025512
313
2,6-Dinitrophenol
573-56-8
DTXSID5022063
10
10,000i
Benzene, 2,4-diisocyanato-1 -methyl-
584-84-9
DTXSID7026156
10,000
100
500
100
X
Toluene-2,4-diisocyanate
584-84-9
DTXSID7026156
10,000
100
500
100
313
2-Butene-cis
590-18-1
DTXSID0027224
10,000
1-Chloropropylene
590-21-6
DTXSID5020318
10,000
1-Propene, 1-chloro-
590-21-6
DTXSID5020318
10,000
1-Acetyl-2-thiourea
591-08-2
DTXSID4060446
1,000
P002
Calcium cyanide
592-01-8
DTXSID6023941
10
10,000
313c
P021
Mercuric cyanide
592-04-1
DTXSID3060457
1
1,000
313c
Mercuric thiocyanate
592-85-8
DTXSID7060469
10
10,000
313c
Lead thiocyanate
592-87-0
DTXSID90890513
10
10,000
313c
Vinyl bromide
593-60-2
DTXSID8021432
100
313
Methanesulfenyl chloride, trichloro-
594-42-3
DTXSID6025854
10,000
100
500
100
X
Perchloromethyl mercaptan
594-42-3
DTXSID6025854
10,000
100
500
100
313
For Reference Only
36
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Trichloromethanesulfenyl chloride
594-42-3
DTXSID6025854
10,000
100
500
100
X
Tetraethyltin
597-64-8
DTXSID9022073
100
100
Bromoacetone
598-31-2
DTXSID6060507
1,000
P017
Bromotrifluoroethylene
598-73-2
DTXSID0060513
10,000
Ethene, bromotrifluoro-
598-73-2
DTXSID0060513
10,000
2,6-Dinitrotoluene
606-20-2
DTXSID5020528
100
10,000i
313
U106
Hexachlorocyclohexane (all isomers)
608-73-1
DTXSID7020687
&
Pentachlorobenzene
608-93-5
DTXSID7024247
10
313
U183
3,4,5-Trichlorophenol
609-19-8
DTXSID4026212
10
10,000i
3,4-Dinitrotoluene
610-39-9
DTXSID8027240
10
10,000i
3,3'-Dimethylbenzidine dihydrochloride
612-82-8
DTXSID6020511
313
3,3'-Dichlorobenzidine dihydrochloride
612-83-9
DTXSID1020433
313
Thiourea, (2-methylphenyl)-
614-78-8
DTXSID6060634
500/10,000
500
2,4-Diaminoanisole
615-05-4
DTXSID5041358
313
1,2-Phenylenediamine dihydrochloride
615-28-1
DTXSID3021140
313
A/-Nitroso-A/-methylurethane
615-53-2
DTXSID4021472
1
U178
Di-n -propylnitrosamine
621-64-7
DTXSID6021032
10
X
U111
A/-Nitrosodi-n -propylamine
621-64-7
DTXSID6021032
10
313
U111
1,4-Phenylenediamine dihydrochloride
624-18-0
DTXSID8021141
313
2-Butene, (E)
624-64-6
DTXSID7027255
10,000
2-Butene-trans
624-64-6
DTXSID7027255
10,000
Methane, isocyanato-
624-83-9
DTXSID1023786
10,000
10
500
10
X
P064
Methyl isocyanate
624-83-9
DTXSID1023786
10,000
10
500
10
313
P064
For Reference Only
37
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
tert-Amyl acetate
625-16-1
DTXS ID80978091
5000
5,000,000i
sec-Amyl acetate
626-38-0
DTXSID8052306
5000
5,000,000i
Chloroethyl chloroformate
627-11-2
DTXSID2060832
1,000
1,000
2-Pentene, (Z)-
627-20-3
DTXSID10891269
10,000
Amyl acetate
628-63-7
DTXSID1027263
5,000
5,000,000
Mercury fulminate
628-86-4
DTXSID40893599
10
313c
P065
Selenourea
630-10-4
DTXSID4024303
1,000
P103
Ethane, 1,1,1,2-tetrachloro-
630-20-6
DTXSID2021317
100
X
U208
1,1,1,2-Tetrachloroethane
630-20-6
DTXSID2021317
100
313
U208
Ouabain
630-60-4
DTXSID0043765
100/10,000
100
Ammonium acetate
631-61-8
DTXSID5023873
5,000
5,000,000
o-Toluidine hydrochloride
636-21-5
DTXSID7021364
100
313
U222
Triphenyltin chloride
639-58-7
DTXSID2040733
500/10,000
500
313
Fluoroacetamide
640-19-7
DTXSID2034255
100
100/10,000
100
P057
Dimetilan
644-64-4
DTXSID2041880
1
500/10,000
1
P191
2-Pentene, (E)-
646-04-8
DTXSID50891268
10,000
Cyanuric fluoride
675-14-9
DTXSID6060975
100
100
313c
Methyl phosphonic dichloride
676-97-1
DTXSID6060979
100
100
1-Decanol,
678-39-7
DTXSID7029904
313
Hexamethylphosphoramide
680-31-9
DTXSID6020694
1
313
Dibutyltin dichloride
683-18-1
DTXSID8027292
313
For Reference Only
38
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
A/-Nitroso-A/-methylurea
684-93-5
DTXSID4021006
1
313
U177
1-Buten-3-yne
689-97-4
DTXSID4029199
10,000
Vinyl acetylene
689-97-4
DTXSID4029199
10,000
Diethylarsine
692-42-2
DTXSID50988905
1
P038
Dichlorophenylarsine
696-28-6
DTXSID7061011
1
500
1
P036
Phenyl dichloroarsine
696-28-6
DTXSID7061011
1
500
1
P036
Propanil
709-98-8
DTXSID8022111
313
Hexaethyl tetraphosphate
757-58-4
DTXSID80862401
100
P062
N -Nitroso-A/ -ethy lu rea
759-73-9
DTXSID8020593
1
313
U176
S-Ethyl dipropylthiocarbamate
759-94-4
DTXS ID 1024091
313
Methacrylic anhydride
760-93-0
DTXSID60862404
500
500
2-Butene, 1,4-dichloro-
764-41-0
DTXSID9027310
1
X
U074
1,4-Dichloro-2-butene
764-41-0
DTXSID9027310
313
U074
Glycidylaldehyde
765-34-4
DTXSID9020665
10
U126
Carbophenothion
786-19-6
DTXSID7022120
500
500
1,1 -Dichloro-1,2,2-trifluoroethane
812-04-4
DTXSID6042022
313
HCFC-123b
812-04-4
DTXSID6042022
X
Diethyl chlorophosphate
814-49-3
DTXSID4052556
500
500
Acrylyl chloride
814-68-6
DTXS ID 1061150
5,000
100
100
2-Propenoyl chloride
814-68-6
DTXS ID 1061150
5,000
100
100
Cupric oxalate(5)
814-91-5
DTXSID0041802
100,000
313c
Cupric tartrate
815-82-7
DTXSID00883592
100
100,000
313c
Hexamethylene-1,6-diisocyanate
822-06-0
DTXSID4024143
100
313-N120
Diaminotoluene
823-40-5
DTXSID4027319
10
U221
Trimethylolpropane phosphite
824-11-3
DTXSID10871809
100/10,000
100
Ametryn
834-12-8
DTXSID1023869
313
C.I. Solvent Yellow 14
842-07-9
DTXSID4021135
313
1-Dodecanol,
3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,
865-86-1
DTXSID2029905
313
A/-Methyl-2-pyrrolidone
872-50-4
DTXSID6020856
313
For Reference Only
39
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Stannane, acetoxytriphenyl-
900-95-8
DTXSID6021408
500/10,000
500
Demeton-S -methyl
919-86-8
DTXSID5037521
500
500
Methacryloyl chloride
920-46-7
DTXSID6061280
100
100
A/-Nitrosodi-n -butylamine
924-16-3
DTXSID2021026
10
313
U172
A/-Methylolacrylamide
924-42-5
DTXSID3020885
313
A/-Nitroso pyrrolidine
930-55-2
DTXSID8021062
1
U180
2,3,6-Trichlorophenol
933-75-5
DTXSID5026209
10
10,000i
313c
2,3,5-Trichlorophenol
933-78-8
DTXSID0026208
10
10,000i
313c
Fonofos
944-22-9
DTXSID2024113
500
500
Phosfolan
947-02-4
DTXS ID 1042285
100/10,000
100
Mephosfolan
950-10-7
DTXSID0058221
500
500
Methidathion
950-37-8
DTXSID5020819
500/10,000
500
Diphenamid
957-51-7
DTXSID8024072
313
alpha - Endosulfan
959-98-8
DTXSID9037539
1
Tetrachlorvinphos
961-11-5
DTXSID1021320
313
C.I. Basic Red 1
989-38-8
DTXS ID 1021243
313
Norbormide
991-42-4
DTXSID8042216
100/10,000
100
Triethoxysilane
998-30-1
DTXSID6052667
500
500
Chlormequat chloride
999-81-5
DTXSID6020303
100/10,000
100
Heptachlor epoxide
1024-57-3
DTXSID1024126
1
Endosulfan sulfate
1031-07-8
DTXSID3037541
1
Triamiphos
1031-47-6
DTXSID2042482
500/10,000
500
Chromic acetate
1066-30-4
DTXSID4020327
1,000
1,000,000
313c
Ammonium bicarbonate
1066-33-7
DTXSID5035618
5,000
5,000,000
Trimethyltin chloride
1066-45-1
DTXSID6042496
500/10,000
500
Lead stearate
1072-35-1
DTXSID0029630
10
10,000
313c
Ammonium carbamate
1111-78-0
DTXSID9027360
5,000
5,000,000
Pebulate
1114-71-2
DTXS ID8021199
313
A/-Nitrosodiethanolamine
1116-54-7
DTXSID7021027
1
U173
For Reference Only
40
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
1,3-Propane sultone
1120-71-4
DTXSID8021195
10
313
U193
Nitrocyclohexane
1122-60-7
DTXSID6061529
500
500
Pyridine, 4-nitro-, 1-oxide
1124-33-0
DTXSID9041524
500/10,000
500
Metolcarb
1129-41-5
DTXSID8057938
1,000
100/10,000
1000
P190
Cycloate
1134-23-2
DTXSID6032356
313
Decabromodiphenyl oxide
1163-19-5
DTXSID9020376
313
Ferric ammonium citrate
1185-57-5
DTXSID9040477
1,000
1,000,000
Dichlobenil
1194-65-6
DTXSID5032365
100
100,000
1,3,4,6,7,8-Hexahydro-4,6,6,7,8,8-
1222-05-5
DTXSID8027373
313
Xylenol
1300-71-6
DTXSID8027375
1,000
1,000,000
Arsenic pentoxide
1303-28-2
DTXS ID 1034343
1
1,000
100/10,000
1
313c
P011
Arsenic trisulfide
1303-33-9
DTXSID50274153
1
1,000
313c
Cadmium oxide
1306-19-0
DTXSID0024715
100/10,000
100
313c
Antimony trioxide
1309-64-4
DTXSID4023880
1,000
1,000,000
313c
Potassium hydroxide
1310-58-3
DTXSID5029633
1,000
1,000,000
Sodium hydroxide
1310-73-2
DTXSID0029634
1,000
1,000,000
Molybdenum trioxide
1313-27-5
DTXSID7020899
313
Thorium dioxide
1314-20-1
DTXSID0051657
313
Thallic oxide
1314-32-5
DTXSID1024330
100
313c
P113
Vanadium pentoxide
1314-62-1
DTXSID2023806
1,000
1,000,000
100/10,000
1,000
313c
P120
Sulfur phosphide
1314-80-3
DTXSID0051659
100
100,000
U189
Zinc phosphide
1314-84-7
DTXSID1024386
100
100,000
500
100
313c
P122
Zinc phosphide (conc. > 10%)
1314-84-7
DTXSID1024386
100
100,000
500
100
313c
P122
Zinc phosphide (conc. <= 10%)
1314-84-7
DTXSID1024386
100
100,000
500
100
313c
U249
Lead sulfide
1314-87-0
DTXS ID002 5498
10
10,000
313c
2,4,5-T amines
1319-72-8
DTXSID00927384
5,000
5,000,000
Cresol (mixed isomers)
1319-77-3
DTXSID3024364
100
100,000
313
U052
2,4-D Esters
1320-18-9
DTXSID6032308
100
100,000
X
2,4-D propylene glycol butyl ether ester
1320-18-9
DTXSID6032308
100
100,000
313
For Reference Only
41
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Nitrotoluene
1321-12-6
DTXSID901010229
1,000
1,000,000
Arsenic trioxide
1327-53-3
DTXSID0020103
1
1,000
100/10,000
1
313c
P012
Arsenous oxide
1327-53-3
DTXSID0020103
1
1,000
100/10,000
1
313c
P012
Xylene (mixed isomers)
1330-20-7
DTXSID2021446
100
100,000
313
U239
Dichlorobenzidine
1331-47-1
DTXSID4061676
&
Zinc borate
1332-07-6
DTXSID6091554
1,000
1,000,000
313c
Asbestos (friable) t||
1332-21-4
DTXSID4023888
1
313
Hydrogen
1333-74-0
DTXSID9029643
10,000
Sodium bifluoride
1333-83-1
DTXSID1037010
100
100,000
Lead subacetate
1335-32-6
DTXS ID 1020774
10
313c
U146
Hexachloronaphthalene
1335-87-1
DTXSID60872604
313
Ammonium hydroxide
1336-21-6
DTXSID4020080
1,000
1,000,000
X
PCBs
1336-36-3
DTXSID5024267
1
1,000
X
Polychlorinated biphenyls
1336-36-3
DTXSID5024267
1
1,000
313
Methyl ethyl ketone peroxide
1338-23-4
DTXS ID 1024671
10
U160
Naphthenic acid
1338-24-5
DTXS ID 1027394
100
100,000
Ammonium bifluoride
1341-49-7
DTXSID9029645
100
100,000
Aluminum oxide (fibrous forms)
1344-28-1
DTXSID2041593
313
Antimycin A
1397-94-0
DTXSID9032325
1,000/10,000
1,000
Dinoterb
1420-07-1
DTXSID7041883
500/10,000
500
2,2'-Bioxirane
1464-53-5
DTXSID0041307
10
500
10
X
U085
Diepoxybutane
1464-53-5
DTXSID0041307
10
500
10
313
U085
cis-1,4-dichloro-2-butene
1476-11-5
DTXSID3027405
313i
U074
Trichloro(chloromethyl)silane
1558-25-4
DTXSID2061779
100
100
Carbofuran phenol
1563-38-8
DTXSID2027414
10
U367
Carbofuran
1563-66-2
DTXSID9020249
10
10,000
10/10,000
10
313
P127
Benezeneamine, 2,6-dinitro-A/,A/-
1582-09-8
DTXSID4021395
10
X
Trifluralin
1582-09-8
DTXSID4021395
10
313
Mercuric acetate
1600-27-7
DTXSID4042123
500/10,000
500
313c
Hydrazine, 1,2-diethyl-
1615-80-1
DTXS ID 1043754
10
U086
Ethanesulfonyl chloride, 2-chloro-
1622-32-8
DTXSID5061825
500
500
For Reference Only
42
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Methyl tert-butyl ether
1634-04-4
DTXSID3020833
1,000
313
Aldicarb sulfone
1646-88-4
DTXSID6023862
100
P203
1,2-Dichloro-1,1-difluoroethane
1649-08-7
DTXSID5031393
313
HCFC-132b
1649-08-7
DTXSID5031393
X
3-
1652-63-7
DTXSID8051419
313
Bromoxynil
1689-84-5
DTXSID3022162
313
Bromoxynil octanoate
1689-99-2
DTXSID7023932
313
N-Ethyl-N-(2-
1691-99-2
DTXSID6027426
313
1,1 -Dichloro-1 -fluoroethane
1717-00-6
DTXSID2020422
313
HCFC-141 b
1717-00-6
DTXSID2020422
X
2,3,7,8-Tetrachlorodibenzo-p-dioxin
1746-01-6
DTXSID2021315
1
313-N150
Acetone thiosemicarbazide
1752-30-3
DTXSID6044480
1,000/10,000
1,000
Ammonium thiocyanate
1762-95-4
DTXSID3029653
5,000
5,000,000
Perfluorooctanesulfonic acid
1763-23-1
DTXSID3031864
1
313
Nitrofen
1836-75-5
DTXSID7020970
313
Benfluralin
1861-40-1
DTXSID3023899
313
Ammonium benzoate
1863-63-4
DTXSID4041602
5,000
5,000,000
Hexachloropropene
1888-71-7
DTXSID7062039
1,000
U243
Chlorothalonil
1897-45-6
DTXSID0020319
313
Paraquat dichloride
1910-42-5
DTXSID7024243
10/10,000
10
313
Atrazine
1912-24-9
DTXSID9020112
313
Dicamba
1918-00-9
DTXSID4024018
1,000
1,000,000
313
3,6-Dichloro-2-methoxybenzoic acid
1918-00-9
DTXSID4024018
1,000
1,000,000
X
Picloram
1918-02-1
DTXSID1021160
313
Propachlor
1918-16-7
DTXSID4024274
313
2,4-D Esters
1928-38-7
DTXSID6041349
100
100,000
2,4-D 2-ethylhexyl ester
1928-43-4
DTXSID4034235
313
2,4,5-T esters
1928-47-8
DTXSID8041329
1,000
1,000,000
2,4-D Esters
1928-61-6
DTXSID4062066
100
100,000
For Reference Only
43
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
2,4-D 2-butoxyethyl ester
1929-73-3
DTXSID1032309
100
100,000
313
2,4-D Esters
1929-73-3
DTXSID1032309
100
100,000
X
Nitrapyrin
1929-82-4
DTXSID0024216
313
C.I. Direct Black 38
1937-37-7
DTXSID7020184
313
Chloroxuron
1982-47-4
DTXSID7040287
500/10,000
500
Sodium dicamba
1982-69-0
DTXSID8027450
313
Tributyltin fluoride
1983-10-4
DTXSID1032480
313
2-Propenoic acid, 2-methyl-,
3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-
1996-88-9
DTXSID8062101
313
Valinomycin
2001-95-8
DTXSID9041150
1,000/10,000
1,000
2,4,5-T amines
2008-46-0
DTXSID30894994
5,000
Mercaptodimethur(8)
2032-65-7
DTXSID3032626
10
10,000
500/10,000
10
X
P199
Methiocarb
2032-65-7
DTXSID3032626
10
10,000
500/10,000
10
313
P199
Decane,
2043-53-0
DTXSID6062123
313
Dodecane,
2043-54-1
DTXSID1062124
313
Paraquat methosulfate
2074-50-2
DTXSID7034202
10/10,000
10
Phenylsilatrane
2097-19-0
DTXSID1062176
100/10,000
100
EPN
2104-64-5
DTXSID7022174
100/10,000
100
2-Propenoic acid, 2-methyl-,
2144-54-9
DTXSID6062204
313
Tributyltin methacrylate
2155-70-6
DTXSID9035204
313
Dipotassium endothall
2164-07-0
DTXSID0034568
313
Fluometuron
2164-17-2
DTXSID8020628
313
Molinate
2212-67-1
DTXSID6024206
313
Sodium perfluorobutanoate
2218-54-4
DTXSID70880179
313
Cadmium stearate
2223-93-0
DTXSID30890557
1,000/10,000
1,000
313c
Thiocarbazide
2231-57-4
DTXSID7027461
1,000/10,000
1,000
Octachloronaphthalene
2234-13-1
DTXSID6025800
313
Diglycidyl ether
2238-07-5
DTXSID4051871
1,000
1,000
1-Octanesulfonamide, N-butyl-
132831
DTXSID7062295
313
Prothoate
2275-18-5
DTXSID8037627
100/10,000
100
For Reference Only
44
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Dimethylamine dicamba
2300-66-5
DTXSID9034369
313
Carbamothioic acid, bis(l-methylethyl)-
2303-16-4
DTXSID2020391
100
X
U062
Diallate
2303-16-4
DTXSID2020391
100
313
U062
Triallate
2303-17-5
DTXSID5024344
100
313
U389
Propargite
2312-35-8
DTXSID4024276
10
10,000
313
Potassium perfluorooctanoate
2395-00-8
DTXSID00880026
313
Chinomethionat
2439-01-2
DTXSID2032342
313
Dodine
2439-10-3
DTXSID3020548
313
Triglycidyl isocyanurate
2451-62-9
DTXSID4026262
313
Oxydisulfoton
2497-07-6
DTXSID4037536
500
500
Dimethyl chlorothiophosphate
2524-03-0
DTXSID0027486
500
500
313
Dimethyl phosphorochloridothioate
2524-03-0
DTXSID0027486
500
500
X
Formothion
2540-82-1
DTXSID4041991
100
100
2,4,5-T esters
2545-59-7
DTXSID3041328
1,000
1,000,000
1,4-Cyclohexane diisocyanate
2556-36-7
DTXSID8062521
313-N120
Pentadecylamine
2570-26-5
DTXSID8062529
100/10,000
100
Phosphorothioic acid, 0,0-dimethyl-5-
2587-90-8
DTXSID2041838
500
500
C.l. Direct Blue 6
2602-46-2
DTXSID2020185
313
Promecarb
2631-37-0
DTXSID4037617
1000
500/10,000
1000
P201
Cyanophos
2636-26-2
DTXSID0041806
1,000
1,000
Azinphos-ethyl
2642-71-9
DTXSID5037498
100/10,000
100
2,3,5-Trimethylphenyl methylcarbamate
2655-15-4
DTXSID9041318
313
Phosphonothioic acid, methyl-, 0-(4-
2665-30-7
DTXSID7042225
500
500
Sulfuryl fluoride
2699-79-8
DTXSID9034945
313
2,4-D sodium salt
2702-72-9
DTXSID4027496
313
Phosphonothioic acid, methyl-, O-ethyl
2703-13-1
DTXSID0042240
500
500
Thallous malonate
2757-18-8
DTXSID1062627
100/10,000
100
5-(Aminomethyl)-3-isoxazolol
2763-96-4
DTXSID5041069
1,000
500/10,000
1,000
P007
Muscimol
2763-96-4
DTXSID5041069
1,000
500/10,000
1,000
P007
Diquat
2764-72-9
DTXSID6034554
1,000
1,000,000
Endothion
2778-04-3
DTXSID2041911
500/10,000
500
For Reference Only
45
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
CAS Number/
CAA
CWA
EPCRA
313 Category
112(r)(7)
CERCLA
311 G)(5)
EPCRA 302
304 EHS
EPCRA
RCRA
Name
Codes
Comptox
TQ
HS RQ
HS TQ
EHS TPQ
RQ
313 TRI
Code
Potassium perfluorooctanesulfonate
2795-39-3
DTXSID8037706
313
C.I. Disperse Yellow 3
2832-40-8
DTXSID6021450
313
2-Chloro-1,1,1,2-tetrafluoroethane
2837-89-0
DTXSID7029245
313
HCFC-124
2837-89-0
DTXSID7029245
X
Chlorpyrifos
2921-88-2
DTXSID4020458
1
1,000
Sodium perfluorohexanoate
2923-26-4
DTXSID3052856
313
Ferric ammonium oxalate
2944-67-4
DTXSID80890522
1,000
1,000,000
Potassium heptafluorobutanoate
2966-54-3
DTXSID20896624
313
2,4-D chlorocrotyl ester
2971-38-2
DTXSID6041345
100
100,000
313
2,4-D Esters
2971-38-2
DTXSID6041345
100
100,000
X
Glycine, N-ethyl-N-
2991-51-7
DTXSID3042009
313
Ammonium citrate, dibasic
3012-65-5
DTXSID5020079
5,000
5,000,000
Silane, (4-aminobutyl)diethoxymethyl-
3037-72-7
DTXSID20893072
1,000
1,000
Cyclohexanesulfonic acid, undecafluoro
3107-18-4
DTXSID5062847
313
Ammonium perfluorodecanoate (PFDA
3108-42-7
DTXSID60880027
313
C.I. Solvent Orange 7
3118-97-6
DTXS ID5040706
313
Ammonium tartrate
3164-29-2
DTXSID50889463
5,000
5,000,000
4-Chloro-o-toluidine, hydrochloride
3165-93-3
DTXSID0020288
100
U049
1,5-Naphthalene diisocyanate
3173-72-6
DTXSID8040145
313-N120
1,2,5,6,9,10-Hexabromocyclododecane
3194-55-6
DTXSID4027527
313-N270
Cupric nitrate
3251-23-8
DTXSID7040314
100
100,000
313c
Phosphoric acid, dimethyl 4-(methylthio)
3254-63-5
DTXSID00863137
500
500
1,2,3,4,6,7,8,9-octachlorodibenzo-p-
3268-87-9
DTXSID4025799
313-N150
0,0-Diethyl S-methyl dithiophosphate
3288-58-2
DTXSID2062957
5,000
U087
2,2-Bis(bromomethyl)-1,3-propanediol
3296-90-0
DTXSID9020164
313
Temephos
3383-96-8
DTXSID1032484
313
Zinc carbonate
3486-35-9
DTXSID5049817
1,000
1,000,000
313c
DDE b
3547-04-4
DTXS ID 1063069
5,000
Sulfoxide, 3-chloropropyl octyl
3569-57-1
DTXSID5041483
500
500
Benzimidazole, 4,5-dichloro-2-
3615-21-2
DTXSID0041773
500/10,000
500
Methoxone sodium salt
3653-48-3
DTXSID2034700
313
For Reference Only
46
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
CAS Number/
CAA
CWA
EPCRA
313 Category
112(r)(7)
CERCLA
311 G)(5)
EPCRA 302
304 EHS
EPCRA
RCRA
Name
Codes
Comptox
TQ
HS RQ
HS TQ
EHS TPQ
RQ
313 TRI
Code
Sulfotep
3689-24-5
DTXSID7024328
100
500
100
P109
Tetraethyldithiopyrophosphate
3689-24-5
DTXSID7024328
100
500
100
P109
Chlorophacinone
3691-35-8
DTXSID2032348
100/10,000
100
5-Methylchrysene
3697-24-3
DTXSID6063143
313-N590
Amiton oxalate
3734-97-2
DTXSID9041601
100/10,000
100
Methyl phenkapton
3735-23-7
DTXSID6042153
500
500
C.I. Food Red 5
3761-53-3
DTXSID8021228
313
2,4,5-T amines
3813-14-7
DTXSID6063199
5,000
5,000,000
Ammonium perfluorooctanoate
3825-26-1
DTXSID8037708
313
Sodium perfluorodecanoate (PFDA-Na)
3830-45-3
DTXSID20880028
313
1-Hexanesulfonic acid,
3871-99-6
DTXSID3037709
313
1-Pentanesulfonic acid,
3872-25-1
DTXSID2063214
313
Fuberidazole
3878-19-1
DTXSID4041995
100/10,000
100
Bitoscanate
4044-65-9
DTXSID3046532
500/10,000
500
1-(3-Chloroallyl)-3,5,7-triaza-1-
4080-31-3
DTXSID5024760
313
Isophorone diisocyanate
4098-71-9
DTXSID0023826
500
500
313-N120
Phosacetim
4104-14-7
DTXSID5040330
100/10,000
100
Dichlorosilane
4109-96-0
DTXS ID 1052082
10,000
Silane, dichloro-
4109-96-0
DTXS ID 1052082
10,000
4,4'-Diisocyanatodiphenyl ether
4128-73-8
DTXSID6044937
313-N120
Sulfluramid
4151-50-2
DTXS ID 1032646
313
2-Butenal
4170-30-3
DTXSID8024864
20,000
100
100,000
1,000
100
X
U053
Crotonaldehyde
4170-30-3
DTXSID8024864
20,000
100
100,000
1,000
100
313
U053
Fluenetil
4301-50-2
DTXS ID9058103
100/10,000
100
Phenol, 2,2'-thiobis[4-chloro-6-methyl-
4418-66-0
DTXSID1041768
100/10,000
100
A/-Nitrosomethylvinylamine
4549-40-0
DTXSID3042211
10
313
P084
C.I. Acid Green 3
4680-78-8
DTXSID3020671
313
Hexamethylenediamine, A/,A/'-dibutyl-
4835-11-4
DTXSID6038823
500
500
2-Propenoic acid, 2-methyl-,
4980-53-4
DTXSID4063660
313
Nitrilotriacetic acid trisodium salt
5064-31-3
DTXSID8027587
313
Chlordane, alpha isomer
5103-71-9
DTXSID6038326
1
1,000
1
313
U036
For Reference Only
47
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Chlordane, gamma isomer
5103-74-2
DTXSID4038346
1
1,000
1
313
U036
1,1'-Methylene bis(4-
5124-30-1
DTXSID3027588
313-N120
Carboxin
5234-68-4
DTXSID0023951
313
Thiourea, (2-chlorophenyl)-
5344-82-1
DTXSID4063799
100
100/10,000
100
P026
Dibenzo[a,e]fluoranthene
5385-75-1
DTXSID9063821
313-N590
1-Nitropyrene
5522-43-0
DTXSID6020983
313-N590
Chlorpyrifos-methyl
5598-13-0
DTXSID6032352
313
Coumatetralyl
5836-29-3
DTXSID8041799
500/10,000
500
Terbacil
5902-51-2
DTXSID8024317
313
Ethanol, 2,2'-oxybis-, dicarbamate
5952-26-1
DTXSID80884204
5000
U395
Ammonium oxalate
5972-73-6
DTXSID2064072
5,000
5,000,000
Ammonium oxalate
6009-70-7
DTXSID90975516
5,000
5,000,000
2-Propenoic acid, 2-methyl-,
6014-75-1
DTXS ID 1064083
313
2,4,5-T amines
6369-96-6
DTXSID8064270
5,000
5,000,000
2,4,5-T amines
6369-97-7
DTXSID3064271
5,000
5,000,000
C.I. Acid Red 114
6459-94-5
DTXSID8021224
313
Thallium(l) carbonate
6533-73-9
DTXSID1024332
100
100/10,000
100
313c
U215
Thallous carbonate
6533-73-9
DTXSID1024332
100
100/10,000
100
313c
U215
Monocrotophos
6923-22-4
DTXSID9034816
10/10,000
10
4-Chlorophenyl phenyl ether
7005-72-3
DTXSID2052447
5,000
Prometryn
7287-19-6
DTXSID4024272
313
Ethanol, 2-[2-[2-[2-(4-
7311-27-5
DTXSID0064624
313-N535
Endrin aldehyde
7421-93-4
DTXSID0047743
1
Lead stearate
7428-48-0
DTXSID101011011
10
10,000
313c
Aluminum (fume or dust)
7429-90-5
DTXSID3040273
313
Lead ||
7439-92-1
DTXSID2024161
10
313
Manganese
7439-96-5
DTXSID2024169
313
For Reference Only
48
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Mercury
7439-97-6
DTXSID1024172
1
313
U151
Nickel It
7440-02-0
DTXSID2020925
100
313
Silver ||
7440-22-4
DTXSID4024305
1,000
313
Sodium
7440-23-5
DTXS ID 1049774
10
10,000
Thallium ||
7440-28-0
DTXSID2036035
1,000
313
Antimony ||
7440-36-0
DTXSID5023879
5,000
313
Arsenic ||
7440-38-2
DTXSID4023886
1
313
Barium
7440-39-3
DTXSID8023894
313
Beryllium ||
7440-41-7
DTXSID4023913
10
313
P015
Cadmium ||
7440-43-9
DTXS ID 1023940
10
313
For Reference Only
49
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Chromium ||
7440-47-3
DTXSID3031022
5,000
313
Cobalt
7440-48-4
DTXSID1031040
313
Copper It
7440-50-8
DTXSID2023985
5,000
313
Vanadium (except when contained in
7440-62-2
DTXSID2040282
313
Zinc It
7440-66-6
DTXSID7035012
1,000
Zinc (fume or dust)
7440-66-6
DTXSID7035012
1,000
313
Selenium dioxide
7446-08-4
DTXSID4021264
10
10,000
313c
Sulfur dioxide
7446-09-5
DTXSID6029672
500
500
Sulfur dioxide (anhydrous)
7446-09-5
DTXSID6029672
5,000
500
500
Sulfur trioxide
7446-11-9
DTXSID1029673
10,000
100
100
Lead sulfate
7446-14-2
DTXSID50883502
10
10,000
313c
Thallium(l) sulfate
7446-18-6
DTXSID1024336
100
100,000
100/10,000
100
313c
P115
Thallous sulfate
7446-18-6
DTXSID1024336
100
100,000
100/10,000
100
313c
P115
Lead phosphate
7446-27-7
DTXS ID5064706
10
313c
U145
Cupric chloride
7447-39-4
DTXSID7040449
10
10,000
313c
Mercuric chloride
7487-94-7
DTXSID5020811
500/10,000
500
313c
Selenium sulfide
7488-56-4
DTXSID0042375
10
313c
U205
6-Nitrochrysene
7496-02-8
DTXSID9075454
313-N590
Titanium chloride (TiCI4) (T-4)-
7550-45-0
DTXSID8042476
2,500
1,000
100
1,000
X
Titanium tetrachloride
7550-45-0
DTXSID8042476
2,500
1,000
100
1,000
313
Sodium phosphate, dibasic
7558-79-4
DTXS ID 1026039
5,000
5,000,000
Lithium hydride
7580-67-8
DTXSID80893078
100
100
Sodium phosphate, tribasic
7601-54-9
DTXSID2035223
5000
5,000,000
Sodium arsenate
7631-89-2
DTXSID5020102
1
1,000
1,000/10,000
1
313c
Sodium bisulfite
7631-90-5
DTXSID8034902
5,000
5,000,000
Sodium nitrite
7632-00-0
DTXSID0020941
100
100,000
313
For Reference Only
50
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Borane, trifluoro-
7637-07-2
DTXSID7041677
5,000
500
500
X
Boron trifluoride
7637-07-2
DTXSID7041677
5,000
500
500
313
Lead arsenate
7645-25-2
DTXSID80273932
1
1,000
313c
Zinc chloride
7646-85-7
DTXSID2035013
1,000
1,000,000
313c
Hydrochloric acid
7647-01-0
DTXSID2020711
5,000
5,000,000
Hydrochloric acid (cone 37% or greater)
7647-01-0
DTXSID2020711
15,000
5,000
5,000,000
Hydrochloric acid (aerosol forms only)
7647-01-0
DTXSID2020711
5,000
5,000,000
313
Hydrogen chloride (anhydrous)
7647-01-0
DTXSID2020711
5,000
5,000
5,000,000
500
5,000
X
Hydrogen chloride (gas only)
7647-01-0
DTXSID2020711
5,000
5,000
5,000,000
500
5,000
X
Antimony pentachloride
7647-18-9
DTXSID30893043
1,000
1,000,000
Phosphoric acid
7664-38-2
DTXSID5024263
5,000
5,000,000
Hydrofluoric acid
7664-39-3
DTXSID1049641
100
100,000
100
100
X
U134
Hydrofluoric acid (conc. 50% or greater)
7664-39-3
DTXSID1049641
1,000
100
100,000
100
100
X
U134
Hydrogen fluoride
7664-39-3
DTXSID1049641
100
100,000
100
100
313
U134
Hydrogen fluoride (anhydrous)
7664-39-3
DTXSID1049641
1,000
100
100,000
100
100
X
U134
Ammonia
7664-41-7
DTXSID0023872
100
100,000
500
100
Ammonia (conc 20% or greater)
7664-41-7
DTXSID0023872
20,000
See ammi
100,000
X
Ammonia (anhydrous)
7664-41-7
DTXSID0023872
10,000
100
100,000
500
100
X
Ammonia (includes anhydrous
ammonia and aqueous ammonia from
water dissociable ammonium salts and
other sources; 10 percent of total
7664-41-7
DTXSID0023872
100,000
313
Sulfuric acid
7664-93-9
DTXSID5029683
1,000
1,000,000
1,000
1,000
Sulfuric acid (acid aerosols)
7664-93-9
DTXSID5029683
1,000
1,000,000
1,000
1,000
313
Sodium fluoride
7681-49-4
DTXSID2020630
1,000
1,000,000
Sodium hypochlorite
7681-52-9
DTXSID8021276
100
100,000
For Reference Only
51
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Tetramethrin
7696-12-0
DTXSID6032649
313
Nitric acid
7697-37-2
DTXSID5029685
1,000
1,000,000
1,000
1,000
313
Nitric acid (cone 80% or greater)
7697-37-2
DTXSID5029685
15,000
1,000
1,000,000
1,000
1,000
X
Zinc bromide
7699-45-8
DTXSID8052512
1,000
1,000,000
313c
Ferric chloride
7705-08-0
DTXSID8020622
1,000
1,000,000
Nickel chloride
7718-54-9
DTXSID7040316
100
100,000
313c
Phosphorous trichloride
7719-12-2
DTXSID5029687
15,000
1,000
1,000,000
1,000
1,000
Phosphorus trichloride
7719-12-2
DTXSID5029687
15,000
1,000
1,000,000
1,000
1,000
Ferrous sulfate
7720-78-7
DTXSID0029688
1,000
1,000,000
Potassium permanganate
7722-64-7
DTXSID2034839
100
100,000
313c
Hydrogen peroxide (Conc.> 52%)
7722-84-1
DTXSID2020715
1,000
1,000
Phosphorus
7723-14-0
DTXSID1024382
1
1,000
100
1
Phosphorus (yellow or white)
7723-14-0
DTXSID1024382
1,000
Bromine
7726-95-6
DTXSID1035238
10,000
500
500
313
Zinc sulfate
7733-02-0
DTXSID2040315
1,000
1,000,000
313c
Chromic acid (4)
7738-94-5
DTXSID8034455
10
10,000
313c
Potassium bromate
7758-01-2
DTXSID6020195
313
Ferrous chloride
7758-94-3
DTXSID9029695
100
100,000
Lead chloride
7758-95-4
DTXSID1041059
10
10,000
313c
Cupric sulfate
7758-98-7
DTXSID6034479
10
10,000
313c
Silver nitrate
7761-88-8
DTXSID3032042
1
1,000
313c
Ammonium sulfamate
7773-06-0
DTXSID5023875
5,000
5,000,000
Sodium chromate
7775-11-3
DTXSID7032056
10
10,000
313c
Arsenic acid
7778-39-4
DTXSID1034341
1
313c
P010
Calcium arsenate
7778-44-1
DTXSID6058182
1
1,000
500/10,000
1
313c
Potassium bichromate
7778-50-9
DTXSID5025948
10
10,000
313c
Calcium hypochlorite
7778-54-3
DTXSID1029700
10
10,000
Zinc hydrosulfite
7779-86-4
DTXSID00894224
1,000
1,000,000
313c
Zinc nitrate
7779-88-6
DTXSID10890636
1,000
1,000,000
313c
For Reference Only
52
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Fluorine
7782-41-4
DTXSID3024106
1,000
10
500
10
313
P056
Selenium ||
7782-49-2
DTXSID9021261
100
313
Chlorine (3)
7782-50-5
DTXSID1020273
2,500
10
10,000
100
10
313
Ferrous sulfate
7782-63-0
DTXSID9040344
1000
1,000,000
Sodium selenite
7782-82-3
DTXSID2064814
100
100,000
313c
Mercurous nitrate
7782-86-7
DTXSID30872515
10
10,000
313c
Selenious acid
7783-00-8
DTXSID9024300
10
1,000/10,000
10
313c
U204
Hydrogen sulfide
7783-06-4
DTXSID4024149
10,000
100
100,000
500
100
313
U135
Hydrogen selenide
7783-07-5
DTXSID20872822
500
10
10
313c
Mercuric sulfate
7783-35-9
DTXSID7064819
10
10,000
313c
Lead fluoride
7783-46-2
DTXSID901014471
10
10,000
313c
Zinc fluoride
7783-49-5
DTXSID20894882
1,000
1,000,000
313c
Ferric fluoride
7783-50-8
DTXSID1064823
100
100,000
Antimony trifluoride
7783-56-4
DTXSID1064827
1,000
1,000,000
313c
Sulfur fluoride (SF4), (T-4)-
7783-60-0
DTXSID40893074
2,500
100
100
Sulfurtetrafluoride
7783-60-0
DTXSID40893074
2,500
100
100
Antimony pentafluoride
7783-70-2
DTXSID00893075
500
500
313c
Tellurium hexafluoride
7783-80-4
DTXSID20893077
100
100
Arsenous trichloride
7784-34-1
DTXSID3042556
15,000
1
1,000
500
1
313c
Lead arsenate
7784-40-9
DTXSID4042092
1
1,000
313c
Potassium arsenate
7784-41-0
DTXSID9041100
1
1,000
313c
Arsine
7784-42-1
DTXSID3023760
1,000
100
100
Sodium arsenite
7784-46-5
DTXSID5020104
1
1,000
500/10,000
1
313c
Mevinphos
7786-34-7
DTXSID2032683
10
10,000
500
10
313
Nickel sulfate
7786-81-4
DTXSID6023787
100
100,000
313c
Beryllium chloride
7787-47-5
DTXSID10858756
1
1,000
313c
Beryllium fluoride
7787-49-7
DTXSID50873983
1
1,000
313c
Beryllium nitrate
7787-55-5
DTXSID40999065
1
1,000
313c
For Reference Only
53
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Ammonium chromate
7788-98-9
DTXSID3064857
10
10,000
313c
Potassium chromate
7789-00-6
DTXSID8064858
10
10,000
313c
Strontium chromate
7789-06-2
DTXSID70872832
10
10,000
313c
Ammonium bichromate
7789-09-5
DTXSID70872953
10
10,000
313c
Cadmium bromide
7789-42-6
DTXSID30895027
10
10,000
313c
Cobaltous bromide
7789-43-7
DTXSID50894158
1,000
1,000,000
313c
Antimony tribromide
7789-61-9
DTXSID6064870
1,000
1,000,000
313c
Chlorosulfonic acid
7790-94-5
DTXSID1029706
1,000
1,000,000
Thallium chloride TICI
7791-12-0
DTXSID6024333
100
100/10,000
100
313c
U216
Thallous chloride
7791-12-0
DTXSID6024333
100
100/10,000
100
313c
U216
Chlorine monoxide
7791-21-1
DTXSID50893909
10,000
Chlorine oxide
7791-21-1
DTXSID50893909
10,000
Selenium oxychloride
7791-23-3
DTXSID50884438
500
500
313c
Phosphine
7803-51-2
DTXSID2021157
5,000
100
500
100
313
P096
Ammonium vanadate
7803-55-6
DTXSID1052533
1,000
313c
P119
Silane
7803-62-5
DTXSID6052534
10,000
Camphechlor
8001-35-2
DTXSID7021368
1
1,000
500/10,000
1
X
P123
Camphene, octachloro-
8001-35-2
DTXSID7021368
1
1,000
500/10,000
1
X
P123
Toxaphene
8001-35-2
DTXSID7021368
1
1,000
500/10,000
1
313
P123
Creosote
8001-58-9
DTXSID2023987
313
Dichloropropane - Dichloropropene
8003-19-8
DTXSID0058481
100
100,000
Pyrethrins
8003-34-7
DTXSID8034873
1
For Reference Only
54
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Oleum (fuming sulfuric acid)
8014-95-7
DTXSID5064889
10,000
1,000
Sulfuric acid (fuming)
8014-95-7
DTXSID5064889
10,000
1,000
Sulfuric acid, mixture with sulfur trioxide
8014-95-7
DTXSID5064889
10,000
1,000
Demeton
8065-48-3
DTXSID5022306
500
500
Metiram
9006-42-2
DTXSID9034737
313
Poly(oxy-1,2-ethanediyl), a-
9016-45-9
DTXSID1027718
313-N535
Polymeric diphenylmethane
9016-87-9
DTXSID3047473
313-N120
Sodium hypochlorite
10022-70-5
DTXSID4064898
100
100,000i
Sulfur monochloride (9)
10025-67-9
DTXSID3042427
1,000
1,000,000
Chromic chloride
10025-73-7
DTXSID20858722
1/10,000
1
313c
Silane, trichloro-
10025-78-2
DTXSID4029301
10,000
Trichlorosilane
10025-78-2
DTXSID4029301
10,000
Phosphorus oxychloride
10025-87-3
DTXSID5029710
5,000
1,000
1,000,000
500
1,000
Phosphoryl chloride
10025-87-3
DTXSID5029710
5,000
1,000
1,000,000
500
1,000
Antimony trichloride
10025-91-9
DTXSID4044161
1,000
1,000,000
313c
Zirconium tetrachloride
10026-11-6
DTXSID1044142
5,000
5,000,000
Phosphorus pentachloride
10026-13-8
DTXSID9033896
500
500
Ozone
10028-15-6
DTXSID0021098
100
100
313
Ferric sulfate
10028-22-5
DTXSID5029712
1,000
1,000,000
Thallium sulfate
10031-59-1
DTXSID401014795
100
100,000
100/10,000
100
313c
Hydrazine sulfate (1:1)
10034-93-2
DTXSID8020703
313
For Reference Only
55
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Sodium phosphate, dibasic
10039-32-4
DTXSID4064923
5,000
5,000,000
Aluminum sulfate
10043-01-3
DTXSID2040317
5,000
5,000,000
Ferrous ammonium sulfate
10045-89-3
DTXSID4041028
1,000
1,000,000
Mercuric nitrate
10045-94-0
DTXSID9044162
10
10,000
313c
Chlorine dioxide
10049-04-4
DTXSID5023958
1,000
313
Chlorine oxide (CI02)
10049-04-4
DTXSID5023958
1,000
X
Chromous chloride
10049-05-5
DTXSID20905548
1,000
1,000,000
313c
cis-1,3-Dichloropropene
10061-01-5
DTXSID2024030
313i
trans-1,3-Dichloropropene
10061-02-6
DTXSID2042480
313
Lead nitrate
10099-74-8
DTXSID2035069
10
10,000
313c
Chromic sulfate
10101-53-8
DTXSID20890642
1,000
1,000,000
313c
Lead iodide
10101-63-0
DTXSID101014310
10
10,000
313c
Sodium phosphate, tribasic
10101-89-0
DTXSID0049810
5,000
5,000,000
Uranyl nitrate
10102-06-4
DTXSID2037136
100
100,000
For Reference Only
56
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Sodium selenite
10102-18-8
DTXSID0032077
100
100,000
100/10,000
100
313c
Sodium tellurite
10102-20-2
DTXSID2064943
500/10,000
500
Nitric oxide
10102-43-9
DTXSID1020938
10,000
10 @
100
10
P076
Nitrogen oxide (NO)
10102-43-9
DTXSID1020938
10,000
10 @
100
10
P076
Nitrogen dioxide
10102-44-0
DTXSID7020974
10 @
10,000
100
10
P078
Thallium(l) nitrate
10102-45-1
DTXSID1024334
100
313c
U217
Lead arsenate
10102-48-4
DTXSID7064944
1
1,000
313c
Cadmium chloride
10108-64-2
DTXSID6020226
10
10,000
313c
Potassium arsenite
10124-50-2
DTXSID5057919
1
1,000
500/10,000
1
313c
Sodium phosphate, dibasic
10140-65-5
DTXSID0064969
5,000
5,000,000
Ethanol, 1,2-dichloro-, acetate
10140-87-1
DTXSID80893073
1,000
1,000
Ammonium bisulfite
10192-30-0
DTXS ID 1050462
5,000
5,000,000
Ammonium sulfite
10196-04-0
DTXSID2064991
5,000
5,000,000
For Reference Only
57
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Cobalt carbonyl
10210-68-1
DTXSID10895040
10/10,000
10
313c
2,2-Dibromo-3-nitrilopropionamide
10222-01-2
DTXSID5032361
313s
Methamidophos
10265-92-6
DTXSID6024177
100/10,000
100
Borane, trichloro-
10294-34-5
DTXSID2041676
5,000
500
500
X
Boron trichloride
10294-34-5
DTXSID2041676
5,000
500
500
313
Dialifor
10311-84-9
DTXSID0037522
100/10,000
100
1,4-Bis(methylisocyanate)cyclohexane
10347-54-3
DTXSID2065046
313-N120
Sodium phosphate, tribasic
10361-89-4
DTXSID6065054
5,000
5,000,000
Cupric sulfate, ammoniated
10380-29-7
DTXSID70908605
100
100,000
313c
Mercurous nitrate
10415-75-5
DTXSID0065066
10
10,000
313c
Ferric nitrate
10421-48-4
DTXS ID4065070
1,000
1,000,000
Resmethrin
10453-86-8
DTXSID7022253
313
Methacrolein diacetate
10476-95-6
DTXSID70864277
1,000
1,000
Ammonium perfluorobutanoate
10495-86-0
DTXSID10893420
313
Nitrogen dioxide
10544-72-6
DTXSID00893116
10 @
Sodium bichromate
10588-01-9
DTXSID8021274
10
10,000
313c
Carbendazim
10605-21-7
DTXSID4024729
10
U372
Isononylphenol
11066-49-2
DTXSID60872987
313-N530
Aroclor 1260
11096-82-5
DTXSID0020101
1
Aroclor 1254
11097-69-1
DTXSID5020100
1
Aroclor 1221
11104-28-2
DTXSID3093945
1
Aroclor 1232
11141-16-5
DTXSID3093949
1
Cupric acetoarsenite
12002-03-8
DTXSID0024846
1
1,000
500/10,000
1
313c
Paris green
12002-03-8
DTXSID0024846
1
1,000
500/10,000
1
Selenious acid, dithallium(1+) salt
12039-52-0
DTXSID6024335
1,000
313c
P114
For Reference Only
58
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Arsenic disulfide (2)
12044-79-0
DTXSID8058291
1
1,000
313c
Nickel hydroxide
12054-48-7
DTXSID90274011
10
10,000
313c
Manganese, tricarbonyl
12108-13-3
DTXSID9027738
100
100
313c
Zineb
12122-67-7
DTXSID5021465
313
Ammonium fluoride
12125-01-8
DTXSID6050463
100
100,000
Ammonium chloride
12125-02-9
DTXSID0020078
5,000
5,000,000
Ammonium sulfide
12135-76-1
DTXSID60893218
100
100,000
Phosphorus (yellow or white)
12185-10-3
DTXSID90923991
313
Maneb
12427-38-2
DTXSID9020794
313
Aroclor 1248
12672-29-6
DTXSID4023884
1
Aroclor 1016
12674-11-2
DTXSID9023883
1
Sulfur monochloride (9)
12771-08-3
DTXSID10192708
1,000
Terbufos
13071-79-9
DTXSID2022254
100
100
Phosphamidon
13171-21-6
DTXSID7021156
100
100
Ethoprop
13194-48-4
DTXSID4032611
1,000
1,000
313
Ethoprophos
13194-48-4
DTXSID4032611
1,000
1,000
X
Phosphorodithioic acid O-ethyl S,S-
dipropyl ester
13194-48-4
DTXSID4032611
1,000
1,000
X
Hexafluoropropylene oxide dimer acid
13252-13-6
DTXSID70880215
313
For Reference Only
59
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Fenbutatin oxide
13356-08-6
DTXSID7032391
313
Sodium selenate
13410-01-0
DTXSID5032076
100/10,000
100
313c
Gallium trichloride
13450-90-3
DTXSID8031360
500/10,000
500
Nickel carbonyl
13463-39-3
DTXSID0024212
1,000
10
1
10
313c
P073
Iron carbonyl (Fe(CO)5), (TB-5-11)-
13463-40-6
DTXSID3027746
2,500
100
100
X
Iron, pentacarbonyl-
13463-40-6
DTXSID3027746
2,500
100
100
313
1,1 -Dichloro-1,2,2,3,3-
pentafluoropropane
13474-88-9
DTXSID1042029
313
HCFC-225cc
13474-88-9
DTXSID1042029
X
2,4,5-T salts
13560-99-1
DTXSID2041333
1,000
1,000,000
Beryllium nitrate
13597-99-4
DTXSID6065555
1
1,000
313c
Tris(1,3-dichloro-2-propyl) phosphate
13674-87-8
DTXSID9026261
313
Desmedipham
13684-56-5
DTXSID0034518
313
For Reference Only
60
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
CAS Number/
CAA
CWA
EPCRA
313 Category
112(r)(7)
CERCLA
311 G)(5)
EPCRA 302
304 EHS
EPCRA
RCRA
Name
Codes
Comptox
TQ
HS RQ
HS TQ
EHS TPQ
RQ
313 TRI
Code
Zirconium nitrate
13746-89-9
DTXSID9049821
5,000
5,000,000
Calcium chromate
13765-19-0
DTXSID0024717
10
10,000
313c
U032
Lead fluoborate
13814-96-5
DTXSID9065651
10
10,000
313c
Ammonium fluoborate
13826-83-0
DTXSID8065660
5,000
5,000,000
sec-Butylamine
13952-84-6
DTXSID4022284
1,000
1,000,000i
Cobaltous sulfamate
14017-41-5
DTXSID50890736
1,000
1,000,000
313c
Bis(3,5,5-trimethylhexyl) phthalate
14103-61-8
DTXSID0057889
313-N125
Salcomine
14167-18-1
DTXSID1065718
500/10,000
500
Nickel nitrate
14216-75-2
DTXSID101015049
100
100,000
313c
Ammonium oxalate
14258-49-2
DTXSID50931532
5,000
5,000,000
For Reference Only
61
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
CAS Number/
CAA
CWA
EPCRA
313 Category
112(r)(7)
CERCLA
311 G)(5)
EPCRA 302
304 EHS
EPCRA
RCRA
Name
Codes
Comptox
TQ
HS RQ
HS TQ
EHS TPQ
RQ
313 TRI
Code
Lithium chromate
14307-35-8
DTXSID8065749
10
10,000
313c
Ammonium tartrate
14307-43-8
DTXSID90931738
5,000
5,000,000
Ferbam
14484-64-1
DTXSID8020624
313
Zinc ammonium chloride
14639-97-5
DTXSID90892315
1,000
1,000,000
313c
For Reference Only
62
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Zinc ammonium chloride
14639-98-6
DTXSID20884763
1,000
1,000,000
313c
Zirconium sulfate
14644-61-2
DTXSID0021466
5,000
5,000,000
Bicyclo[2.2.1]heptane-2-carbonitrile, 5-
chloro-6-
((((methylamino)carbonyl)oxy)imino)-,(1-
alpha,2-beta,4-alpha,5-alpha,6E))-
15271-41-7
DTXSID3040304
500/10,000
500
Manganese,
bis(dimethylcarbamodithioato-S,S')-
15339-36-3
DTXSID4058316
10
313c
P196
2,4,4-Trimethylhexamethylene
diisocyanate
15646-96-5
DTXSID70864611
313-N120
For Reference Only
63
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
CAS Number/
CAA
CWA
EPCRA
313 Category
112(r)(7)
CERCLA
311 G)(5)
EPCRA 302
304 EHS
EPCRA
RCRA
Name
Codes
Comptox
TQ
HS RQ
HS TQ
EHS TPQ
RQ
313 TRI
Code
Nickel ammonium sulfate
15699-18-0
DTXSID20890763
100
100,000
313c
Lead sulfate
15739-80-7
DTXSID801010971
10
313c
2,3,4-Trichlorophenol
15950-66-0
DTXSID5026207
10
10,000i
313c
Alachlor
15972-60-8
DTXSID1022265
313
C.I. Direct Brown 95
16071-86-6
DTXSID3020201
313
For Reference Only
64
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Octadecanoic acid, pentatriacontafluoro
16517-11-6
DTXS ID 1066071
313
A/-Nitrosonornicotine
16543-55-8
DTXSID4021476
313
Sodium hydrosulfide
16721-80-5
DTXSID3029738
5,000
5,000,000
Ethanimidothioic acid, N-
[[methylamino)carbonyl]
16752-77-5
DTXSID1022267
100
500/10,000
100
P066
Methomyl
16752-77-5
DTXSID1022267
100
500/10,000
100
P066
Zinc silicofluoride
16871-71-9
DTXSID50884938
5,000
5,000,000
313c
Ammonium silicofluoride
16919-19-0
DTXSID6047076
1,000
1,000,000
Zirconium potassium fluoride
16923-95-8
DTXSID00893979
1,000
1,000,000
2,2,4-Trimethylhexamethylene
16938-22-0
DTXSID0044602
313-N120
1-Nonanesulfonic acid,
17202-41-4
DTXS ID9066174
313
For Reference Only
65
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Decaborane(14)
17702-41-9
DTXS ID80880049
500/10,000
500
Formparanate
17702-57-7
DTXSID9041992
100
100/10,000
100
P197
1,1,2,2-Tetrahydroperfluorododecyl
17741-60-5
DTXSID9037743
313
Benomyl
17804-35-2
DTXS ID5023900
10
313
U271
Streptozotocin
18883-66-4
DTXSID2021282
1
U206
Oryzalin
19044-88-3
DTXSID8024238
313
Diborane
19287-45-7
DTXSID9024938
2,500
100
100
Diborane(6)
19287-45-7
DTXSID9024938
2,500
100
100
1,2,3,7,8,9-hexachlorodibenzo-p-dioxin
19408-74-3
DTXSID6023781
313-N150
Pentaborane
19624-22-7
DTXSID10880057
500
500
Oxydiazon
19666-30-9
DTXSID3024239
313
3,3'-Dimethoxybenzidine
20325-40-0
DTXSID1020485
313
Methazole
20354-26-1
DTXSID1040293
313
Ethanol, 2-[2-(4-nonylphenoxy)ethoxy]-
20427-84-3
DTXSID9058600
313-N535
Bis(7-methyloctyl) phthalate
20548-62-3
DTXSID60860420
313-N125
Osmium oxide 0s04 (T-4)-
20816-12-0
DTXSID5042245
1,000
X
P087
Osmium tetroxide
20816-12-0
DTXSID5042245
1,000
313
P087
Digoxin
20830-75-5
DTXSID5022934
10/10,000
10
Daunomycin
20830-81-3
DTXSID7022883
10
U059
Aluminum phosphide
20859-73-8
DTXSID1023867
100
500
100
313
P006
Metribuzin
21087-64-9
DTXSID6024204
313
Fosthietan
21548-32-3
DTXSID4041993
500
500
Leptophos
21609-90-5
DTXSID3040279
500/10,000
500
Ammonium perfluorohexanoate
21615-47-4
DTXS ID90880232
313
Perfluorooctyl Ethylene
21652-58-4
DTXSID7074616
313
Cyanazine
21725-46-2
DTXSID1023990
313
Mercuric oxide
21908-53-2
DTXSID4042125
500/10,000
500
313c
Chlorthiophos
21923-23-9
DTXSID9041786
500
500
For Reference Only
66
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Fenamiphos
22224-92-6
DTXSID3024102
10/10,000
10
Bendiocarb
22781-23-3
DTXSID9032327
100
313
U278
2,2-Dimethyl-1,3-benzodioxol-4-ol
22781-23-3
DTXSID9032327
100
X
U278
Bendiocarb phenol
22961-82-6
DTXSID3066845
1,000
U364
Ox a my I
23135-22-0
DTXSID6021086
100
100/10,000
100
P194
Formetanate hydrochloride
23422-53-9
DTXSID4032405
100
500/10,000
100
P198
Pirimifos-ethyl
23505-41-1
DTXSID5042297
1,000
1,000
Thiophanate-methyl
23564-05-8
DTXSID1024338
10
313
U409
Thiophanate-ethyl
23564-06-9
DTXSID3034531
313
Benzamide, 3,5-dichloro-A/-(1,1-
23950-58-5
DTXSID2020420
5,000
X
U192
Pronamide
23950-58-5
DTXSID2020420
5,000
313
U192
Triazofos
24017-47-8
DTXSID9037612
500
500
1-Octanesulfonamide,
24448-09-7
DTXSID7027831
313
Chlormephos
24934-91-6
DTXSID1037511
500
500
Nonylphenol
25154-52-3
DTXSID3021857
313-N530
Dinitrobenzene (mixed isomers)
25154-54-5
DTXSID20891710
100
100,000
Nitrophenol (mixed isomers)
25154-55-6
DTXSID201023223
100
100,000
Nitrophenols
25154-55-6
DTXSID201023223
&
100,000
Tris(dimethylphenol) phosphate
25155-23-1
DTXSID9026267
313
Sodium dodecylbenzenesulfonate
25155-30-0
DTXSID7025219
1,000
1,000,000
Butene
25167-67-3
DTXSID0027850
10,000
Trichlorophenol
25167-82-2
DTXSID00858725
10
10,000
313c
2,4,5-T esters
25168-15-4
DTXSID7026075
1,000
1,000,000
2,4-D Esters
25168-26-7
DTXSID0020444
100
100,000
2-
25268-77-3
DTXSID80865199
313
Isofenphos
25311-71-1
DTXSID8032417
313
Dinitrotoluene (mixed isomers)
25321-14-6
DTXSID5027859
10
10,000
313
Dichlorobenzene
25321-22-6
DTXSID0041854
100
100,000
X
For Reference Only
67
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Dichlorobenzene (mixed isomers)
25321-22-6
DTXSID0041854
100
100,000
313
Diaminotoluene (mixed isomers)
25376-45-8
DTXSID9027869
10
313
U221
Toluenediamine
25376-45-8
DTXSID9027869
10
X
U221
Dinitrophenol(6)
25550-58-7
DTXSID40894743
10
Hexabromocyclododecane
25637-99-4
DTXSID8025383
313-N270
Phenothrin
26002-80-2
DTXSID7032688
313
Poly(oxy-1,2-ethanediyl), a-(4-
nonylphenyl)-io-hydroxy-
26027-38-3
DTXSID2036588
313-N535
Calcium dodecylbenzenesulfonate
26264-06-2
DTXSID1027891
1,000
1,000,000
Carbamic acid, methyl-, 0-(((2,4-
26419-73-8
DTXSID3042475
100
100/10,000
100
P185
Benzene, 1,3-diisocyanatomethyl-
26471-62-5
DTXSID0024341
10,000
100
X
U223
Toluenediisocyanate (mixed isomers)
26471-62-5
DTXSID0024341
10,000
100
313
U223
Toluene diisocyanate (unspecified
26471-62-5
DTXSID0024341
10,000
100
X
U223
4-lsononylphenol
26543-97-5
DTXS ID602 74048
313-N530
3,6,9,12,15,18,21,24-
26571-11-9
DTXSID901014740
313-N535
Sodium azide (Na(N3))
26628-22-8
DTXSID8020121
1,000
500
1,000
313
P105
Dichloropropane
26638-19-7
DTXSID901023224
1,000
1,000,000
Triforine
26644-46-2
DTXS ID5032654
313
Dichloropropene
26952-23-8
DTXSID00891738
1
100,000
U061
Trichloro(dichlorophenyl)silane
27137-85-5
DTXSID70893082
500
500
Dodecylbenzenesulfonic acid
27176-87-0
DTXSID6027923
1,000
1,000,000
Ethanol, 2-[2-(nonylphenoxy)ethoxy]-
27176-93-8
DTXSID00872587
313-N535
3,6,9,12,15,18,21 -Heptaoxatricosan-1 -
27177-05-5
DTXSID80872585
313-N535
3,6,9,12,15,18,21,24,27-
27177-08-8
DTXSID90858779
313-N535
Norflurazon
27314-13-2
DTXSID8024234
313
Triethanolamine dodecylbenzene
27323-41-7
DTXSID5027932
1,000
1,000,000
For Reference Only
68
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
1-Decanesulfonyl chloride,
27619-90-5
DTXSID2067329
X
1-Dodecanesulfonyl chloride,
27619-91-6
DTXSID1067330
313
6:2 Fluorotelomer sulfonate sodium salt
27619-94-9
DTXSID50896637
313
6:2 Fluorotelomer sulfonate acid
27619-97-2
DTXSID6067331
313
Vanadyl sulfate
27774-13-6
DTXSID4021428
1,000
1,000,000
313c
1,1,2,2-Tetrahydroperfluorodecyl
27905-45-9
DTXSID5067348
313
Ethanol, 2-(nonylphenoxy)-
27986-36-3
DTXSID9043809
313-N535
Thiobencarb
28249-77-6
DTXSID6024337
313
U238
Antimony potassium tartrate
28300-74-5
DTXSID3039240
100
100,000
313c
Xylylene dichloride
28347-13-9
DTXSID10893081
100/10,000
100
C.I. Direct Blue 218
28407-37-6
DTXSID2020187
313
cf-frans-Allethrin
28434-00-6
DTXSID2039336
313
P098
Diisononyl phthalate
28553-12-0
DTXSID4022521
313-N125
Bromadiolone
28772-56-7
DTXSID9032589
100/10,000
100
1-Octanesulfonic acid,
29081-56-9
DTXSID9067435
313c
Octachlorostyrene
29082-74-4
DTXSID2021074
313
Poly(oxy-1,2-ethanediyl), a-[2-
29117-08-6
DTXSID40897537
313
Pirimiphos-methyl
29232-93-7
DTXSID0024266
500/10,001
500
Potassium perfluorobutane sulfonate
29420-49-3
DTXSID3037707
313
Lithium (perfluorooctane)sulfonate
29457-72-5
DTXSID2032421
313
Tetradecane,
30046-31-2
DTXSID2067535
313
Paraformaldehyde
30525-89-4
DTXSID8034798
1,000
1,000,000
Ethanimidothioic acid, 2-
30558-43-1
DTXSID9029350
5,000
U394
Acephate
30560-19-1
DTXSID8023846
313
Methacryloyloxyethyl isocyanate
30674-80-7
DTXSID6051986
100
100
Propetamphos
31218-83-4
DTXSID7032470
313
1-Octanesulfonamide,
31506-32-8
DTXSID1067629
313
2,4,5-TP esters
32534-95-5
DTXSID60858807
100
100,000
Amitraz
33089-61-1
DTXSID5023871
313
P089
beta - Endosulfan
33213-65-9
DTXSID8037540
1
For Reference Only
69
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
CAS Number/
CAA
CWA
EPCRA
313 Category
112(r)(7)
CERCLA
311 G)(5)
EPCRA 302
304 EHS
EPCRA
RCRA
Name
Codes
Comptox
TQ
HS RQ
HS TQ
EHS TPQ
RQ
313 TRI
Code
Tebuthiuron
34014-18-1
DTXSID3024316
313
Dichlorotrifluoroethane
34077-87-7
DTXSID401022219
313
1,1,2,2-Tetrahydroperfluorohexadecyl
34362-49-7
DTXSID6067836
313
1,1,2,2-Tetrahydroperfluorotetradecyl
34395-24-9
DTXSID5067841
313
Diflubenzuron
35367-38-5
DTXS ID 1024049
313
Sulprofos
35400-43-2
DTXSID8032675
313
Imazalil
35554-44-0
DTXSID8024151
313
1-Bromo-1-(bromomethyl)-1,3-
propanedicarbonitrile
35691-65-7
DTXSID3024944
313
1,2,3,4,6,7,8-heptachlorodibenzo-p-
35822-46-9
DTXS ID 1052034
313-N150
Uranyl nitrate
36478-76-9
DTXSID6091556
100
100,000
Poly(oxy-1,2-ethanediyl), a-
37205-87-1
DTXSID00872608
313-N535
Nickel chloride
37211-05-5
DTXSID601023225
100
100,000
313c
Poly[oxy(methyl-1,2-ethanediyl)], a-[2-
37338-48-0
DTXSID00897538
313
1-Propanaminium, 3-
38006-74-5
DTXS ID 50880410
313
Diphenylhydrazine
38622-18-3
DTXSID201057573
&
1,3-Bis(methylisocyanate)cyclohexane
38661-72-2
DTXSID6044933
313-N120
Diethatyl ethyl
38727-55-8
DTXSID9032539
313
1,2,3,4,6,7,8,9-octachlorodibenzofuran
39001-02-0
DTXSID3052062
313-N150
2,4-Diaminoanisole sulfate
39156-41-7
DTXSID7020398
313
Thiofanox
39196-18-4
DTXSID4042468
100
1,000/10,000
100
P045
1,2,3,4,7,8-hexachlorodibenzo-p-dioxin
39227-28-6
DTXSID8052067
313-N150
1-Tetradecanol,
39239-77-5
DTXS ID3068170
313
Dinocap
39300-45-3
DTXSID3040352
313
Fenpropathrin
39515-41-8
DTXSID0024002
313
1,2,3,7,8-pentachlorodibenzo-p-dioxin
40321-76-4
DTXSID7052078
313-N150
Pendimethalin
40487-42-1
DTXSID7024245
313
Profenofos
41198-08-7
DTXSID3032464
313
3,3'-Dimethylbenzidine dihydrofluoride
41766-75-0
DTXSID40961969
313
1,6-Dinitropyrene
42397-64-8
DTXSID90872819
313-N590
1,8-Dinitropyrene
42397-65-9
DTXSID2073514
313-N590
For Reference Only
70
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Isopropanolamine dodecylbenzene
42504-46-1
DTXSID0049650
1,000
1,000,000
Oxyfluorfen
42874-03-3
DTXSID7024241
313
Triadimefon
43121-43-3
DTXSID3023897
313
Perfluorobutanoate
45048-62-2
DTXSID80892480
313
Perfluorobutanesulfonate
45187-15-3
DTXSID60873015
313
Vinclozolin
50471-44-8
DTXSID4022361
313
Phosphonothioic acid, methyl-, S-(2-
50782-69-9
DTXSID80866161
100
100
2,3,7,8-Tetrachlorodibenzofuran
51207-31-9
DTXSID3052147
313-N150
P037
Hexazinone
51235-04-2
DTXSID4024145
313
Diclofop methyl
51338-27-3
DTXSID0032605
313
Fenvalerate
51630-58-1
DTXSID101017940
313
Poly(oxy-1,2-ethanediyl), a-(2-
51938-25-1
DTXSID30872590
313-N535
1-Propanaminium, N,N,N-trimethyl-3-
52166-82-2
DTXSID90880454
313
Zinc ammonium chloride
52628-25-8
DTXSID6052164
5,001
1,000,000
313c
Permethrin
52645-53-1
DTXSID8022292
313
Calcium arsenite
52740-16-6
DTXSID20904950
10
313
U219
Carbamothioic acid, dipropyl-, S-
(phenylmethyl) ester
52888-80-9
DTXSID3058119
5,000
U387
Bromacil, lithium salt
53404-19-6
DTXSID9034284
313
2,4-D 2-ethyl-4-methylpentyl ester
53404-37-8
DTXSID2034679
313
Dazomet, sodium salt
53404-60-7
DTXSID2058417
313
2,4-D Esters
53467-11-1
DTXSID90896818
100
100,000
Aroclor 1242
53469-21-9
DTXSID3040223
1
Pyriminil
53558-25-1
DTXSID1042360
100/10,000
100
Carbosulfan
55285-14-8
DTXSID5023950
1,000
P189
Dimethipin
55290-64-7
DTXSID0024052
313
3-lodo-2-propynyl butylcarbamate
55406-53-6
DTXSID0028038
313
For Reference Only
71
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Ferric ammonium oxalate
55488-87-4
DTXSID101022327
1,000
1,000,000
313
U123
Cupric oxalate(5)
55671-32-4
DTXSID90974428
100
1,2,3,4,7,8,9-heptachlorodibenzofuran
55673-89-7
DTXSID9052216
313-N150
Glycine, N-
55910-10-6
DTXSID60880486
313
Lead stearate
56189-09-4
DTXSID501014962
10
313C
Poly(oxy-1,2-ethanediyl), a-[2-
56372-23-7
DTXSID70897540
313
Ethanaminium, N,N,N-triethyl-, salt with
56773-42-3
DTXSID5069128
313
2,3,4,7,8-pentachlorodibenzofuran
57117-31-4
DTXSID7030066
313-N150
1,2,3,7,8-pentachlorodibenzofuran
57117-41-6
DTXSID7052234
313-N150
1,2,3,6,7,8-hexachlorodibenzofuran
57117-44-9
DTXSID2069155
313-N150
Triclopyr-triethylammonium salt
57213-69-1
DTXSID0034302
313
1,2,3,6,7,8-hexachlorodibenzo-p-dioxin
57653-85-7
DTXSID0023824
313-N150
4-Nitropyrene
57835-92-4
DTXS ID5074844
313-N590
Zinc, dichloro(4,4-dimethyl-
58270-08-9
DTXSID50893080
100/10,000
10
313c
2-Propenoic acid, 2-
59071-10-2
DTXSID3069306
313
6:2 Fluorotelomer sulfonate potassium
59587-38-1
DTXSID50880511
313
6:2 Fluorotelomer sulfonate ammonium
59587-39-2
DTXSID10880512
313
Thiodicarb
59669-26-0
DTXSID0032578
100
313
U410
Fenarimol
60168-88-9
DTXSID2032390
313
Propiconazole
60207-90-1
DTXSID8024280
313
1-Heptanesulfonic acid,
60270-55-5
DTXSID9069392
313
1-Hexadecanol,
60699-51-6
DTXSID4069422
313
2,3,4,6,7,8-hexachlorodibenzofuran
60851-34-5
DTXSID3052276
313-N150
For Reference Only
72
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
1-Octanesulfonamide, N-ethyl-
61660-12-6
DTXSID8069484
313
2,4,5-T esters
61792-07-2
DTXSID90866339
1,000
1,000,000
Pyridinium, 1-
61798-68-3
DTXSID4069501
313
Hexafluoropropylene oxide dimer acid
62037-80-3
DTXSID40108559
313
Cobalt, ((2,2'-(1,2-
62207-76-5
DTXSID40893079
100/10,000
100
313c
Acifluorfen, sodium salt
62476-59-9
DTXSID7023853
313
Chlorotetrafluoroethane
63938-10-3
DTXSID8051465
313
Chlorsulfuron
64902-72-3
DTXSID7023980
313
3,3'-Dichlorobenzidine sulfate
64969-34-2
DTXSID80886703
313
2-Propenoic acid, 2-methyl-,
65104-45-2
DTXSID80882588
313
1-Eicosanol,
3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,
65104-65-6
DTXSID2070219
313
1-Octadecanol,
65104-67-8
DTXSID6070221
313
Hexadecane,
65510-55-6
DTXSID4070322
313
Poly(difluoromethylene), a-fluoro-io-(2-
65530-59-8
DTXSID50883042
313
Poly(difluoromethylene), a-fluoro-io-[2-
65530-61-2
DTXSID30881925
313
Poly(difluoromethylene), a,a'-
65530-62-3
DTXSID70881843
313
Ethanol, 2,2'-iminobis-, compd. with a-
fluoro-io-[2-
(phosphonooxy)ethyl]poly(difluoromethy
65530-63-4
DTXSID70883029
313
Ethanol, 2,2'-iminobis-, compd. with a,a'-
65530-64-5
DTXSID50882914
313
Poly(difluoromethylene), a-fluoro-io-[2-
[(1-oxooctadecyl)oxy]ethyl]-
65530-65-6
DTXSID60881913
313
Poly(difluoromethylene), a-fluoro-io-[2-
65530-66-7
DTXSID7042302
313
Poly(difluoromethylene), a-[2-[(2-
65530-69-0
DTXSID90883086
313
Poly(difluoromethylene), a,a'-
65530-70-3
DTXSID60883018
313
Poly(difluoromethylene), a-fluoro-io-[2-
65530-71-4
DTXSID70881863
313
Poly(difluoromethylene), a-fluoro-io-[2-
65530-72-5
DTXSID00881876
313
Ethanol, 2,2'-iminobis-, compd. with a-
65530-74-7
DTXSID80883030
313
Poly(difluoromethylene), a-[2-[(2-
65530-83-8
DTXSID40881855
313
Poly(oxy-1,2-ethanediyl), a-hydro-io-
65545-80-4
DTXSID6049727
313
Poly(difluoromethylene), a-fluoro-io-(2-
65605-56-3
DTXSID00883012
313
For Reference Only
73
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
CAS Number/
CAA
CWA
EPCRA
313 Category
112(r)(7)
CERCLA
311 G)(5)
EPCRA 302
304 EHS
EPCRA
RCRA
Name
Codes
Comptox
TQ
HS RQ
HS TQ
EHS TPQ
RQ
313 TRI
Code
Poly(difluoromethylene), a-fluoro-io-(2-
65605-57-4
DTXSID70883024
313
2-Propenoic acid, esters, 2-methyl-,
65605-58-5
DTXSID20882840
313
2-Propenoic acid, 2-methyl-, dodecyl
65605-59-6
DTXSID60897635
313
U068
Poly(difluoromethylene), a-fluoro-io-[2-
65605-73-4
DTXSID00881856
313
Ethanaminium, N,N-diethyl-N-methyl-2-
65636-35-3
DTXSID40897592
313
Fenoxaprop-ethyl
66441-23-4
DTXSID2032392
313
Hydramethylnon
67485-29-4
DTXSID6023868
313
1,2,3,4,6,7,8-heptachlorodibenzofuran
67562-39-4
DTXSID8052350
313-N150
Cyclohexanesulfonic acid,
67584-42-3
DTXSID40880565
313
Glycine, N-ethyl-N-
67584-52-5
DTXSID2070504
313
Glycine, N-ethyl-N-
67584-53-6
DTXSID7070505
313
2-Propenoic acid, 2-
67584-56-9
DTXSID2070508
313
2-Propenoic acid, 2-
[methyl[(tridecafluorohexyl)sulfonyl]ami
67584-57-0
DTXSID7070509
313
1-Propanaminium, N,N,N-trimethyl-3-
67584-58-1
DTXSID60880567
313
Glycine, N-ethyl-N-
67584-62-7
DTXSID1070513
313
Perfluoropalmitic acid
67905-19-5
DTXS ID 1070800
313
1-Decanesulfonic acid,
67906-42-7
DTXSID3070830
313
1-Octanesulfonamide, N-ethyl-
67969-69-1
DTXSID7070925
313
2-Propenoic acid, 2-
68084-62-8
DTXS ID 1071080
313
Cyhalothrin
68085-85-8
DTXSID6023997
313
Thiols, C4-10, y-w-perfluoro
68140-18-1
DTXSID90881901
313
Thiols, C6-12, y-w-perfluoro
68140-20-5
DTXSID30881905
313
Thiols, C10-20, y-w-perfluoro
68140-21-6
DTXSID90881906
313
Chromium(lll) perfluorooctanoate
68141-02-6
DTXSID00880581
313
Cyclohexanesulfonic acid,
68156-01-4
DTXSID80880584
313
Cyclohexanesulfonic acid,
68156-07-0
DTXSID50880591
313
U115
Butanoic acid, 4-[[3-
68187-25-7
DTXSID10882990
313
1-Propanesulfonic acid, 2-methyl-, 2-[[1-
68187-47-3
DTXSID60882960
313
Alkyl iodides, C4-20, y-w-perfluoro
68188-12-5
DTXSID60881973
313
2-Propenoic acid, butyl ester, telomer
68227-96-3
DTXSID00882565
313
For Reference Only
74
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
CAS Number/
CAA
CWA
EPCRA
313 Category
112(r)(7)
CERCLA
311 G)(5)
EPCRA 302
304 EHS
EPCRA
RCRA
Name
Codes
Comptox
TQ
HS RQ
HS TQ
EHS TPQ
RQ
313 TRI
Code
2-Propenoic acid, 2-methyl-, 2-
68239-43-0
DTXSID60897610
313
1-Heptanesulfonic acid,
68259-07-4
DTXSID8071352
313
1-Hexanesulfonic acid,
68259-08-5
DTXSID3071353
313
1-Pentanesulfonic acid,
68259-09-6
DTXSID8071354
313
Poly[oxy(methyl-1,2-ethanediyl)], a-[2-
68259-38-1
DTXSID10883043
313
Poly[oxy(methyl-1,2-ethanediyl)], a-[2-
68259-39-2
DTXSID30883025
313
2-Propenoic acid, 2-
68298-62-4
DTXSID70882618
313
Poly(oxy-1,2-ethanediyl), a-[2-
68298-80-6
DTXSID90883081
313
Poly(oxy-1,2-ethanediyl), a-[2-
68298-81-7
DTXSID60882940
313
Poly[oxy(methyl-1,2-ethanediyl)], a-[2-
68310-17-8
DTXSID70883044
313
Cyfluthrin
68359-37-5
DTXSID5035957
313
Alcohols, C8-14, y-w-perfluoro
68391-08-2
DTXSID70883049
313
U006
Poly(oxy-1,2-ethanediyl), a-
68412-54-4
DTXSID90858693
313-N535
Phosphonic acid, perfluoro-C6-12-alkyl
68412-68-0
DTXSID80882003
313
Phosphinic acid, bis(perfluoro-C6-12-
68412-69-1
DTXSID80881990
313
Di(C8-10, C9 rich) branched alkyl
68515-48-0
DTXSID5028665
313-N125
1,4-Benzenedicarboxylic acid, dimethyl
68515-62-8
DTXSID30882654
313
1-Pentanesulfonamide,
68555-74-8
DTXSID6071663
313
1-Hexanesulfonamide,
68555-75-9
DTXSID 1071664
313
1-Heptanesulfonamide,
68555-76-0
DTXSID6071665
313
1-Propanaminium, N,N,N-trimethyl-3-
68555-81-7
DTXSID30880615
313
2-Propenoic acid, 2-methyl-, 2-
68555-91-9
DTXSID90882579
313
1-Tetradecanesulfonyl chloride,
68758-57-6
DTXSID3071727
313
2-Propenoic acid, 2-
68867-60-7
[[(heptadecafluorooctyl)sulfonyl]methyla
DTXSID20882582
313
1-Propanaminium, N,N,N-trimethyl-3-
68957-55-1
DTXSID 10880618
313
1-Propanaminium, N,N,N-trimethyl-3-
68957-57-3
DTXSID30880938
313
1-Propanaminium, N,N,N-trimethyl-3-
68957-58-4
DTXSID90880939
313
1-Heptanesulfonamide, N-ethyl-
68957-62-0
DTXSID 1071907
313
Poly(oxy-1,2-ethanediyl), a-[2-
68958-60-1
DTXSID90883061
313
Poly(oxy-1,2-ethanediyl), a-[2-
68958-61-2
DTXSID50883067
313
For Reference Only
75
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
Fluvalinate
69409-94-5
DTXSID7024110
313
Fluazifop-butyl
69806-50-4
DTXSID3034612
313
1-Octanesulfonic acid,
70225-14-8
DTXSID2072049
313
1-Heptanesulfonic acid,
1,1,2,2,3,3,4,4,5,5,6,6,7,7,7-
70225-15-9
DTXS ID60880946
313
1-Hexanesulfonic acid,
1,1,2,2,3,3,4,4,5,5,6,6,6-tridecafluoro-,
70225-16-0
DTXS ID 1072050
313
1-Pentanesulfonic acid,
70225-17-1
DTXSID6072051
313
1,2,3,4,7,8-hexachlorodibenzofuran
70648-26-9
DTXSID6029915
313-N150
Thiols, C8-20, y-io-perfluoro, telomers
with acrylamide
70969-47-0
DTXSID10881943
313
Poly(oxy-1,2-ethanediyl), a-methyl-io-
70983-59-4
DTXSID70882951
313
1-Propanaminium, 2-hydroxy-N,N,N-
70983-60-7
DTXSID80883035
313
Branched dinonyl phthalate
71549-78-5
DTXSID401024439
313-N125
Pentanoic acid, 4,4-bis[(y-io-perfluoro-
71608-60-1
DTXSID20881919
313
Abamectin
71751-41-2
DTXSID8023892
313
Fomesafen
72178-02-0
DTXSID7024112
313
Fenoxycarb
72490-01-8
DTXSID7032393
313
Fatty acids, C6-18, perfluoro,
72623-77-9
DTXSID90104480
313
1,2,3,7,8,9-hexachlorodibenzofuran
72918-21-9
DTXSID9052470
313-N150
Fatty acids, C7-13, perfluoro,
72968-38-8
DTXSID80104590
313
Sethoxydim
74051-80-2
DTXSID9024304
313
Phosphoric acid, Y-w-perfluoro-C8-16-
74499-44-8
DTXSID20881873
313
4-Methyldiphenylmethane-3,4-
75790-84-0
DTXSID7072830
313-N120
2,4'-Diisocyanatodiphenyl sulfide
75790-87-3
DTXSID2072833
313-N120
Quizalofop-ethyl
76578-14-8
DTXSID9023889
313
Lactofen
77501-63-4
DTXSID7024160
313
Silane,
78560-44-8
DTXSID2074376
313
Poly(difluoromethylene), a-fluoro-io-[2-
sulphoethyl)-
80010-37-3
DTXSID80881970
313
1,1,1-Trifluoro-N-
82113-65-3
DTXSID2045026
313
Bifenthrin
82657-04-3
DTXSID9020160
313
For Reference Only
76
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
CAS Number/
CAA
CWA
EPCRA
313 Category
112(r)(7)
CERCLA
311 G)(5)
EPCRA 302
304 EHS
EPCRA
RCRA
Name
Codes
Comptox
TQ
HS RQ
HS TQ
EHS TPQ
RQ
313 TRI
Code
Silane,
83048-65-1
DTXSID7072884
313
4-Nonylphenol, branched
84852-15-3
DTXSID5029055
313-N530
Myclobutanil
88671-89-0
DTXSID8024315
313
Lithium bis[(trifluoromethyl)sulfonyl]
90076-65-6
DTXSID8044468
313
Dichloro-1,1,2-trifluoroethane
90454-18-5
DTXSID701022220
313
Nonylphenol, branched
90481-04-2
DTXSID60891517
313-N530
Chlorimuron-ethyl
90982-32-4
DTXSID0023955
313
Poly(difluoromethylene), a-fluoro-io-[2-
95144-12-0
DTXSID50881886
313
Thiocyanic acid, y-io-perfluoro-C4-20-
97553-95-2
DTXSID90881966
313
Alkenes, C8-14 a-, 5-io-perfluoro
97659-47-7
DTXSID60882006
313
Tribenuron-methyl
101200-48-0
DTXSID8024101
313
1,1 -Dichloro-1,2,3,3,3-
111512-56-2
DTXSID0042032
313
HCFC-225eb
111512-56-2
DTXSID0042032
X
Bis(3-ethylheptan-2-yl) benzene-1,2-
111983-10-9
DTXSID00562057
313-N125
3,3'-Dimethoxybenzidine
111984-09-9
DTXSID5036848
313
Disulfides, bis(y-to-perfluoro-C6-20-
118400-71-8
DTXSID70881984
313
Poly(difluoromethylene), a-[2-
123171-68-6
DTXSID90882993
313
Silicic acid (H4Si04), disodium salt,
125476-71-3
DTXSID20106235
313
Poly(oxy-1,2-ethanediyl), a-(4-
127087-87-0
DTXSID0049733
313-N535
Dichloropentafluoropropane
127564-92-5
DTXSID401019240
313
2,2-Dichloro-1,1,1,3,3-
128903-21-9
DTXSID6042024
313
HCFC-225aa
128903-21-9
DTXSID6042024
X
Diethyldiisocyanatobenzene
134190-37-7
DTXSID901023436
313-N120
Hexane, 1,6-diisocyanato-,
135228-60-3
DTXSID60881892
313
1,3-Dichloro-1,1,2,3,3-
136013-79-1
DTXSID5042031
313
For Reference Only
77
Version: April 2025
-------
US EPA: List of Lists
EPA 550-B-24-001
Name
CAS Number/
313 Category
Codes
Comptox
CAA
112(r)(7)
TQ
CERCLA
HS RQ
CWA
311 G)(5)
HS TQ
EPCRA 302
EHS TPQ
EPCRA
304 EHS
RQ
EPCRA
313 TRI
RCRA
Code
HCFC-225ea
136013-79-1
DTXSID5042031
X
2-Propenoic acid, 2-methyl-, octadecyl
142636-88-2
DTXSID00882601
313
Siloxanes and Silicones,
143372-54-7
DTXSID70106588
313
1,3-Propanediol, 2,2-bis[[(y-io-perfluoro-
148240-85-1
DTXSID00883037
313
1,3-Propanediol, 2,2-bis[[(y-io-perfluoro-
148240-87-3
DTXSID90883046
313
1,3-Propanediol, 2,2-bis[[(y-io-perfluoro-
148240-89-5
DTXSID60883038
313
U140
2-Propenoic acid, 2-methyl-, 2-
150135-57-2
DTXSID70882673
313
1-Octanesulfonamide, N-[3-
178094-69-4
DTXSID90881345
313
Fatty acids, linseed-oil, y-w-perfluoro-
178535-23-4
DTXSID40881931
313
Sulfonic acids, C6-12-alkane, y-w-
perfluoro, ammonium salts
180582-79-0
DTXSID80881930
313
Ethaneperoxoic acid, reaction products
182176-52-9
DTXSID80107243
313
2-Propenoic acid, 2-methyl-, 2-
196316-34-4
DTXSID10882874
313
U159
2-Propenoic acid, 2-methyl-, polymer
200513-42-4
DTXSID30108846
313
2-Propenoic acid, 2-methyl-, hexadecyl
203743-03-7
DTXSID90882817
313
Propanedioic acid, mono(y-io-perfluoro-
238420-68-3
DTXSID20881893
313
Propanedioic acid, mono(y-io-perfluoro-
238420-80-9
DTXSID40883071
313
U227
6:2 Fluorotelomer sulfonate anion
425670-75-3
DTXSID40873417
313
1,3-Propanediol, 2,2-bis[[(y-io-perfluoro-
1078142-10-5
DTXSID80882604
313
Thiols, C4-20, y-io-perfluoro, telomers
1078712-88-5
DTXSID60881837
313
1-Propanaminium, 3-amino-N-
1078715-61-3
DTXSID30882917
313
Alcohols, C8-16, y-io-perfluoro, reaction
2728655-42-1
DTXSID801343425
313
U008
Acetamide, N-[3-(dimethylamino)propyl]-
2738952-61-7
DTXSID201343510
313
Acetamide, N-(2-aminoethyl)-, 2-[(y-io-
2742694-36-4
DTXSID201343546
313
Acetic acid, 2-[(y-io-perfluoro-C4-20-
2744262-09-5
DTXSID501343557
313
Betaines, dimethyl(.gamma.-.omega.-
2816091-53-7
DTXSID101353213
313
Acetic acid, [(y-io-perfluoro-C8-10-
3030471-22-5
SRS Entry
313
For Reference Only
78
Version: April 2025
-------
U.S. EPA: List of Lists
Appendix B: Radionuclides Listed Under CERCLA
EPA 550-B-24-001
Appendix B: Radionuclides Listed Under CERCLA
The list below contains radionuclides that are listed under CERCLA.
For Reference Only ~ Not For Regulatory Compliance
See 40 CFR 302.4 Appendix B For the Official List
Radionuclide
Name
Atomic
Number
Final RQ Curies
(Bq)
Radionuclides©
1&(3.7E 10)
Actinium-224
89
100 (3.7E 12)
Actinium-225
89
1 (3.7E 10)
Actinium-226
89
10 (3.7E 11)
Actinium-227
89
0.001 (3.7E 7)
Actinium-228
89
10 (3.7E 11)
Aluminum-26
13
10 (3.7E 11)
Americium-237
95
1000 (3.7E 13)
Americium-238
95
100 (3.7E 12)
Americium-239
95
100 (3.7E 12)
Americium-240
95
10 (3.7E 11)
Americium-241
95
0.01 (3.7E 8)
Americium-242m
95
0.01 (3.7E 8)
Americium-242
95
100 (3.7E 12)
Americium-243
95
0.01 (3.7E 8)
Americium-244m
95
1000 (3.7E 13)
Americium-244
95
10 (3.7E 11)
Americium-245
95
1000 (3.7E 13)
Americium-246m
95
1000 (3.7E 13)
Americium-246
95
1000 (3.7E 13)
Antimony-115
51
1000 (3.7E 13)
Antimony-116m
51
100 (3.7E 12)
Antimony-116
51
1000 (3.7E 13)
Antimony-117
51
1000 (3.7E 13)
Antimony-118m
51
10 (3.7E 11)
Antimony-119
51
1000 (3.7E 13)
Antimony-120 (16
min)
51
1000 (3.7E 13)
Radionuclide
Name
Atomic
Number
Final RQ Curies
(Bq)
Antimony-120
(5.76 day)
51
10 (3.7E 11)
Antimony-122
51
10 (3.7E 11)
Antimony-124m
51
1000 (3.7E 13)
Antimony-124
51
10 (3.7E 11)
Antimony-125
51
10 (3.7E 11)
Antimony-126m
51
1000 (3.7E 13)
Antimony-126
51
10 (3.7E 11)
Antimony-127
51
10 (3.7E 11)
Antimony-128
(10.4 min)
51
1000 (3.7E 13)
Antimony-128
(9.01 hr)
51
10 (3.7E 11)
Antimony-129
51
100 (3.7E 12)
Antimony-130
51
100 (3.7E 12)
Antimony-131
51
1000 (3.7E 13)
Argon-39
18
1000 (3.7E 13)
Argon-41
18
10 (3.7E 11)
Arsenic-69
33
1000 (3.7E 13)
Arsenic-70
33
100 (3.7E 12)
Arsenic-71
33
100 (3.7E 12)
Arsenic-72
33
10 (3.7E 11)
Arsenic-73
33
100 (3.7E 12)
Arsenic-74
33
10 (3.7E 11)
Arsenic-76
33
100 (3.7E 12)
Arsenic-77
33
1000 (3.7E 13)
Arsenic-78
33
100 (3.7E 12)
Astatine-207
85
100 (3.7E 12)
Astatine-211
85
100 (3.7E 12)
Barium-126
56
1000 (3.7E 13)
B-l
April 2025
-------
U.S. EPA: List of Lists
Appendix B: Radionuclides Listed Under CERCLA
EPA 550-B-24-001
Radionuclide
Name
Atomic
Number
Final RQ Curies
(Bq)
Barium-128
56
10 (3.7E 11)
Barium-131m
56
1000 (3.7E 13)
Barium-131
56
10 (3.7E 11)
Barium-133m
56
100 (3.7E 12)
Barium-133
56
10 (3.7E 11)
Barium-135m
56
1000 (3.7E 13)
Barium-139
56
1000 (3.7E 13)
Barium-140
56
10 (3.7E 11)
Barium-141
56
1000 (3.7E 13)
Barium-142
56
1000 (3.7E 13)
Berkelium-245
97
100 (3.7E 12)
Berkelium-246
97
10 (3.7E 11)
Berkelium-247
97
0.01 (3.7E 8)
Berkelium-249
97
1 (3.7E 10)
Berkelium-250
97
100 (3.7E 12)
Beryllium-7
4
100 (3.7E 12)
Beryllium-10
4
1 (3.7E 10)
Bismuth-200
83
100 (3.7E 12)
Bismuth-201
83
100 (3.7E 12)
Bismuth-202
83
1000 (3.7E 13)
Bismuth-203
83
10 (3.7E 11)
Bismuth-205
83
10 (3.7E 11)
Bismuth-206
83
10 (3.7E 11)
Bismuth-207
83
10 (3.7E 11)
Bismuth-210m
83
0.1 (3.7E9)
Bismuth-210
83
10 (3.7E 11)
Bismuth-212
83
100 (3.7E 12)
Bismuth-213
83
100 (3.7E 12)
Bismuth-214
83
100 (3.7E 12)
Bromine-74m
35
100 (3.7E 12)
Bromine-74
35
100 (3.7E 12)
Bromine-75
35
100 (3.7E 12)
Bromine-76
35
10 (3.7E 11)
Radionuclide
Name
Atomic
Number
Final RQ Curies
(Bq)
Bromine-77
35
100 (3.7E 12)
Bromine-80m
35
1000 (3.7E 13)
Bromine-80
35
1000 (3.7E 13)
Bromine-82
35
10 (3.7E 11)
Bromine-83
35
1000 (3.7E 13)
Bromine-84
35
100 (3.7E 12)
Cadmium-104
48
1000 (3.7E 13)
Cadmium-107
48
1000 (3.7E 13)
Cadmium-109
48
1 (3.7E 10)
Cadmium-113m
48
0.1 (3.7E9)
Cadmium-113
48
0.1 (3.7E9)
Cadmium-115m
48
10 (3.7E 11)
Cadmium-115
48
100 (3.7E 12)
Cadmium-117m
48
10 (3.7E 11)
Cadmium-117
48
100 (3.7E 12)
Calcium-41
20
10 (3.7E 11)
Calcium-45
20
10 (3.7E 11)
Calcium-47
20
10 (3.7E 11)
Californium-244
98
1000 (3.7E 13)
Californium-246
98
10 (3.7E 11)
Californium-248
98
0.1 (3.7E9)
Californium-249
98
0.01 (3.7E 8)
Californium-250
98
0.01 (3.7E 8)
Californium-251
98
0.01 (3.7E 8)
Californium-252
98
0.1 (3.7E9)
Californium-253
98
10 (3.7E 11)
Californium-254
98
0.1 (3.7E9)
Carbon-11
6
1000 (3.7E 13)
Carbon-14
6
10 (3.7E 11)
Cerium-134
58
10 (3.7E 11)
Cerium-135
58
10 (3.7E 11)
Cerium-137m
58
100 (3.7E 12)
Cerium-137
58
1000 (3.7E 13)
B-2
April 2025
-------
U.S. EPA: List of Lists
Appendix B: Radionuclides Listed Under CERCLA
EPA 550-B-24-001
Radionuclide
Name
Atomic
Number
Final RQ Curies
(Bq)
Cerium-139
58
100 (3.7E 12)
Cerium-141
58
10 (3.7E 11)
Cerium-143
58
100 (3.7E 12)
Cerium-144
58
1 (3.7E 10)
Cesium-125
55
1000 (3.7E 13)
Cesium-127
55
100 (3.7E 12)
Cesium-129
55
100 (3.7E 12)
Cesium-130
55
1000 (3.7E 13)
Cesium-131
55
1000 (3.7E 13)
Cesium-132
55
10 (3.7E 11)
Cesium-134m
55
1000 (3.7E 13)
Cesium-134
55
1 (3.7E 10)
Cesium-135m
55
100 (3.7E 12)
Cesium-135
55
10 (3.7E 11)
Cesium-136
55
10 (3.7E 11)
Cesium-137
55
1 (3.7E 10)
Cesium-138
55
100 (3.7E 12)
Chlorine-36
17
10 (3.7E 11)
Chlorine-38
17
100 (3.7E 12)
Chlorine-39
17
100 (3.7E 12)
Chromium-48
24
100 (3.7E 12)
Chromium-49
24
1000 (3.7E 13)
Chromium-51
24
1000 (3.7E 13)
Cobalt-55
27
10 (3.7E 11)
Cobalt-56
27
10 (3.7E 11)
Cobalt-57
27
100 (3.7E 12)
Cobalt-58m
27
1000 (3.7E 13)
Cobalt-58
27
10 (3.7E 11)
Cobalt-60m
27
1000 (3.7E 13)
Cobalt-60
27
10 (3.7E 11)
Cobalt-61
27
1000 (3.7E 13)
Cobalt-62m
27
1000 (3.7E 13)
Copper-60
29
100 (3.7E 12)
Radionuclide
Name
Atomic
Number
Final RQ Curies
(Bq)
Copper-61
29
100 (3.7E 12)
Copper-64
29
1000 (3.7E 13)
Copper-67
29
100 (3.7E 12)
Curium-238
96
1000 (3.7E 13)
Curium-240
96
1 (3.7E 10)
Curium-241
96
10 (3.7E 11)
Curium-242
96
1 (3.7E 10)
Curium-243
96
0.01 (3.7E 8)
Curium-244
96
0.01 (3.7E 8)
Curium-245
96
0.01 (3.7E 8)
Curium-246
96
0.01 (3.7E 8)
Curium-247
96
0.01 (3.7E 8)
Curium-248
96
0.001 (3.7E 7)
Curium-249
96
1000 (3.7E 13)
Dysprosium-155
66
100 (3.7E 12)
Dysprosium-157
66
100 (3.7E 12)
Dysprosium-159
66
100 (3.7E 12)
Dysprosium-165
66
1000 (3.7E 13)
Dysprosium-166
66
10 (3.7E 11)
Einsteinium-250
99
10 (3.7E 11)
Einsteinium-251
99
1000 (3.7E 13)
Einsteinium-253
99
10 (3.7E 11)
Einsteinium-254m
99
1 (3.7E 10)
Einsteinium-254
99
0.1 (3.7E9)
Erbium-161
68
100 (3.7E 12)
Erbium-165
68
1000 (3.7E 13)
Erbium-169
68
100 (3.7E 12)
Erbium-171
68
100 (3.7E 12)
Erbium-172
68
10 (3.7E 11)
Europium-145
63
10 (3.7E 11)
Europium-146
63
10 (3.7E 11)
Europium-147
63
10 (3.7E 11)
Europium-148
63
10 (3.7E 11)
B-3
April 2025
-------
U.S. EPA: List of Lists
Appendix B: Radionuclides Listed Under CERCLA
EPA 550-B-24-001
Radionuclide
Name
Atomic
Number
Final RQ Curies
(Bq)
Europium-149
63
100 (3.7E 12)
Europium-150
(12.6 hr)
63
1000 (3.7E 13)
Europium-150
(34.2 yr)
63
10 (3.7E 11)
Europium-152m
63
100 (3.7E 12)
Europium-152
63
10 (3.7E 11)
Europium-154
63
10 (3.7E 11)
Europium-155
63
10 (3.7E 11)
Europium-156
63
10 (3.7E 11)
Europium-157
63
10 (3.7E 11)
Europium-158
63
1000 (3.7E 13)
Fermium-252
100
10 (3.7E 11)
Fermium-253
100
10 (3.7E 11)
Fermium-254
100
100 (3.7E 12)
Fermium-255
100
100 (3.7E 12)
Fermium-257
100
1 (3.7E 10)
Fluorine-18
9
1000 (3.7E 13)
Francium-222
87
100 (3.7E 12)
Francium-223
87
100 (3.7E 12)
Gadolinium-145
64
100 (3.7E 12)
Gadolinium-146
64
10 (3.7E 11)
Gadolinium-147
64
10 (3.7E 11)
Gadolinium-148
64
0.001 (3.7E7)
Gadolinium-149
64
100 (3.7E 12)
Gadolinium-151
64
100 (3.7E 12)
Gadolinium-152
64
0.001 (3.7E 7)
Gadolinium-153
64
10 (3.7E 11)
Gadolinium-159
64
1000 (3.7E 13)
Gallium-65
31
1000 (3.7E 13)
Gallium-66
31
10 (3.7E 11)
Gallium-67
31
100 (3.7E 12)
Gallium-68
31
1000 (3.7E 13)
Gallium-70
31
1000 (3.7E 13)
Radionuclide
Name
Atomic
Number
Final RQ Curies
(Bq)
Gallium-72
31
10 (3.7E 11)
Gallium-73
31
100 (3.7E 12)
Germanium-66
32
100 (3.7E 12)
Germanium-67
32
1000 (3.7E 13)
Germanium-68
32
10 (3.7E 11)
Germanium-69
32
10 (3.7E 11)
Germanium-71
32
1000 (3.7E 13)
Germanium-75
32
1000 (3.7E 13)
Germanium-77
32
10 (3.7E 11)
Germanium-78
32
1000 (3.7E 13)
Gold-193
79
100 (3.7E 12)
Gold-194
79
10 (3.7E 11)
Gold-195
79
100 (3.7E 12)
Gold-198m
79
10 (3.7E 11)
Gold-198
79
100 (3.7E 12)
Gold-199
79
100 (3.7E 12)
Gold-200m
79
10 (3.7E 11)
Gold-200
79
1000 (3.7E 13)
Gold-201
79
1000 (3.7E 13)
Hafnium-170
72
100 (3.7E 12)
Hafnium-172
72
1 (3.7E 10)
Hafnium-173
72
100 (3.7E 12)
Hafnium-175
72
100 (3.7E 12)
Hafnium-177m
72
1000 (3.7E 13)
Hafnium-178m
72
0.1 (3.7E9)
Hafnium-179m
72
100 (3.7E 12)
Hafnium-180m
72
100 (3.7E 12)
Hafnium-181
72
10 (3.7E 11)
Hafnium-182m
72
100 (3.7E 12)
Hafnium-182
72
0.1 (3.7E9)
Hafnium-183
72
100 (3.7E 12)
Hafnium-184
72
100 (3.7E 12)
Holmium-155
67
1000 (3.7E 13)
B-4
April 2025
-------
U.S. EPA: List of Lists
Appendix B: Radionuclides Listed Under CERCLA
EPA 550-B-24-001
Radionuclide
Name
Atomic
Number
Final RQ Curies
(Bq)
Holmium-157
67
1000 (3.7E 13)
Holmium-159
67
1000 (3.7E 13)
Holmium-161
67
1000 (3.7E 13)
Holmium-162m
67
1000 (3.7E 13)
Holmium-162
67
1000 (3.7E 13)
Holmium-164m
67
1000 (3.7E 13)
Holmium-164
67
1000 (3.7E 13)
Holmium-166m
67
1 (3.7E 10)
Holmium-166
67
100 (3.7E 12)
Holmium-167
67
100 (3.7E 12)
Hydrogen-3
1
100 (3.7E 12)
lndium-109
49
100 (3.7E 12)
lndium-110 (69.1
min)
49
100 (3.7E 12)
lndium-110 (4.9 hr)
49
10 (3.7E 11)
lndium-111
49
100 (3.7E 12)
lndium-112
49
1000 (3.7E 13)
lndium-113m
49
1000 (3.7E 13)
lndium-114m
49
10 (3.7E 11)
lndium-115m
49
100 (3.7E 12)
lndium-115
49
0.1 (3.7E9)
lndium-116m
49
100 (3.7E 12)
lndium-117m
49
100 (3.7E 12)
lndium-117
49
1000 (3.7E 13)
lndium-119m
49
1000 (3.7E 13)
lodine-120m
53
100 (3.7E 12)
lodine-120
53
10 (3.7E 11)
lodine-121
53
100 (3.7E 12)
lodine-123
53
10 (3.7E 11)
lodine-124
53
0.1 (3.7E9)
lodine-125
53
0.01 (3.7E 8)
lodine-126
53
0.01 (3.7E 8)
lodine-128
53
1000 (3.7E 13)
lodine-129
53
0.001 (3.7E 7)
Radionuclide
Name
Atomic
Number
Final RQ Curies
(Bq)
lodine-130
53
1 (3.7E 10)
lodine-131
53
0.01 (3.7E 8)
lodine-132m
53
10 (3.7E 11)
lodine-132
53
10 (3.7E 11)
lodine-133
53
0.1 (3.7E9)
lodine-134
53
100 (3.7E 12)
lodine-135
53
10 (3.7E 11)
lridium-182
77
1000 (3.7E 13)
lridium-184
77
100 (3.7E 12)
lridium-185
77
100 (3.7E 12)
lridium-186
77
10 (3.7E 11)
lridium-187
77
100 (3.7E 12)
lridium-188
77
10 (3.7E 11)
lridium-189
77
100 (3.7E 12)
lridium-190m
77
1000 (3.7E 13)
lridium-190
77
10 (3.7E 11)
lridium-192m
77
100 (3.7E 12)
lridium-192
77
10 (3.7E 11)
lridium-194m
77
10 (3.7E 11)
lridium-194
77
100 (3.7E 12)
lridium-195m
77
100 (3.7E 12)
lridium-195
77
1000 (3.7E 13)
lron-52
26
100 (3.7E 12)
lron-55
26
100 (3.7E 12)
lron-59
26
10 (3.7E 11)
lron-60
26
0.1 (3.7E9)
Krypton-74
36
10 (3.7E 11)
Krypton-76
36
10 (3.7E 11)
Krypton-77
36
10 (3.7E 11)
Krypton-79
36
100 (3.7E 12)
Krypton-81
36
1000 (3.7E 13)
Krypton-83m
36
1000 (3.7E 13)
Krypton-85m
36
100 (3.7E 12)
B-5
April 2025
-------
U.S. EPA: List of Lists
Appendix B: Radionuclides Listed Under CERCLA
EPA 550-B-24-001
Radionuclide
Name
Atomic
Number
Final RQ Curies
(Bq)
Krypton-85
36
1000 (3.7E 13)
Krypton-87
36
10 (3.7E 11)
Krypton-88
36
10 (3.7E 11)
Lanthanum-131
57
1000 (3.7E 13)
Lanthanum-132
57
100 (3.7E 12)
Lanthanum-135
57
1000 (3.7E 13)
Lanthanum-137
57
10 (3.7E 11)
Lanthanum-138
57
1 (3.7E 10)
Lanthanum-140
57
10 (3.7E 11)
Lanthanum-141
57
1000 (3.7E 13)
Lanthanum-142
57
100 (3.7E 12)
Lanthanum-143
57
1000 (3.7E 13)
Lead-195m
82
1000 (3.7E 13)
Lead-198
82
100 (3.7E 12)
Lead-199
82
100 (3.7E 12)
Lead-200
82
100 (3.7E 12)
Lead-201
82
100 (3.7E 12)
Lead-202m
82
10 (3.7E 11)
Lead-202
82
1 (3.7E 10)
Lead-203
82
100 (3.7E 12)
Lead-205
82
100 (3.7E 12)
Lead-209
82
1000 (3.7E 13)
Lead-210
82
0.01 (3.7E 8)
Lead-211
82
100 (3.7E 12)
Lead-212
82
10 (3.7E 11)
Lead-214
82
100 (3.7E 12)
Lutetium-169
71
10 (3.7E 11)
Lutetium-170
71
10 (3.7E 11)
Lutetium-171
71
10 (3.7E 11)
Lutetium-172
71
10 (3.7E 11)
Lutetium-173
71
100 (3.7E 12)
Lutetium-174m
71
10 (3.7E 11)
Lutetium-174
71
10 (3.7E 11)
Radionuclide
Name
Atomic
Number
Final RQ Curies
(Bq)
Lutetium-176m
71
1000 (3.7E 13)
Lutetium-176
71
1 (3.7E 10)
Lutetium-177m
71
10 (3.7E 11)
Lutetium-177
71
100 (3.7E 12)
Lutetium-178m
71
1000 (3.7E 13)
Lutetium-178
71
1000 (3.7E 13)
Lutetium-179
71
1000 (3.7E 13)
Magnesium-28
12
10 (3.7E 11)
Manganese-51
25
1000 (3.7E 13)
Manganese-52m
25
1000 (3.7E 13)
Manganese-52
25
10 (3.7E 11)
Manganese-53
25
1000 (3.7E 13)
Manganese-54
25
10 (3.7E 11)
Manganese-56
25
100 (3.7E 12)
Mendelevium-257
101
100 (3.7E 12)
Mendelevium-258
101
1 (3.7E 10)
Mercury-193m
80
10 (3.7E 11)
Mercury-193
80
100 (3.7E 12)
Mercury-194
80
0.1 (3.7E9)
Mercury-195m
80
100 (3.7E 12)
Mercury-195
80
100 (3.7E 12)
Mercury-197m
80
1000 (3.7E 13)
Mercury-197
80
1000 (3.7E 13)
Mercury-199m
80
1000 (3.7E 13)
Mercury-203
80
10 (3.7E 11)
Molybdenum-90
42
100 (3.7E 12)
Molybdenum-93m
42
10 (3.7E 11)
Molybdenum-93
42
100 (3.7E 12)
Molybdenum-99
42
100 (3.7E 12)
Molybdenum-101
42
1000 (3.7E 13)
Neodymium-136
60
1000 (3.7E 13)
Neodymium-138
60
1000 (3.7E 13)
Neodymium-139m
60
100 (3.7E 12)
B-6
April 2025
-------
U.S. EPA: List of Lists
Appendix B: Radionuclides Listed Under CERCLA
EPA 550-B-24-001
Radionuclide
Name
Atomic
Number
Final RQ Curies
(Bq)
Neodymium-139
60
1000 (3.7E 13)
Neodymium-141
60
1000 (3.7E 13)
Neodymium-147
60
10 (3.7E 11)
Neodymium-149
60
100 (3.7E 12)
Neodymium-151
60
1000 (3.7E 13)
Neptunium-232
93
1000 (3.7E 13)
Neptunium-233
93
1000 (3.7E 13)
Neptunium-234
93
10 (3.7E 11)
Neptunium-235
93
1000 (3.7E 13)
Neptunium-236
(1.2 E 5 yr)
93
0.1 (3.7E9)
Neptunium-236
(22.5 hr)
93
100 (3.7E 12)
Neptunium-237
93
0.01 (3.7E 8)
Neptunium-238
93
10 (3.7E 11)
Neptunium-239
93
100 (3.7E 12)
Neptunium-240
93
100 (3.7E 12)
Nickel-56
28
10 (3.7E 11)
Nickel-57
28
10 (3.7E 11)
Nickel-59
28
100 (3.7E 12)
Nickel-63
28
100 (3.7E 12)
Nickel-65
28
100 (3.7E 12)
Nickel-66
28
10 (3.7E 11)
Niobium-88
41
100 (3.7E 12)
Niobium-89 (66
min)
41
100 (3.7E 12)
Niobium-89 (122
min)
41
100 (3.7E 12)
Niobium-90
41
10 (3.7E 11)
Niobium-93m
41
100 (3.7E 12)
Niobium-94
41
10 (3.7E 11)
Niobium-95m
41
100 (3.7E 12)
Niobium-95
41
10 (3.7E 11)
Niobium-96
41
10 (3.7E 11)
Niobium-97
41
100 (3.7E 12)
Radionuclide
Name
Atomic
Number
Final RQ Curies
(Bq)
Niobium-98
41
1000 (3.7E 13)
Osmium-180
76
1000 (3.7E 13)
Osmium-181
76
100 (3.7E 12)
Osmium-182
76
100 (3.7E 12)
Osmium-185
76
10 (3.7E 11)
Osmium-189m
76
1000 (3.7E 13)
Osmium-191m
76
1000 (3.7E 13)
Osmium-191
76
100 (3.7E 12)
Osmium-193
76
100 (3.7E 12)
Osmium-194
76
1 (3.7E 10)
Palladium-100
46
100 (3.7E 12)
Palladium-101
46
100 (3.7E 12)
Palladium-103
46
100 (3.7E 12)
Palladium-107
46
100 (3.7E 12)
Palladium-109
46
1000 (3.7E 13)
Phosphorus-32
15
0.1 (3.7E9)
Phosphorus-33
15
1 (3.7E 10)
Platinum-186
78
100 (3.7E 12)
Platinum-188
78
100 (3.7E 12)
Platinum-189
78
100 (3.7E 12)
Platinum-191
78
100 (3.7E 12)
Platinum-193m
78
100 (3.7E 12)
Platinum-193
78
1000 (3.7E 13)
Platinum-195m
78
100 (3.7E 12)
Platinum-197m
78
1000 (3.7E 13)
Platinum-197
78
1000 (3.7E 13)
Platinum-199
78
1000 (3.7E 13)
Platinum-200
78
100 (3.7E 12)
Plutonium-234
94
1000 (3.7E 13)
Plutonium-235
94
1000 (3.7E 13)
Plutonium-236
94
0.1 (3.7E9)
Plutonium-237
94
1000 (3.7E 13)
Plutonium-238
94
0.01 (3.7E 8)
B-7
April 2025
-------
U.S. EPA: List of Lists
Appendix B: Radionuclides Listed Under CERCLA
EPA 550-B-24-001
Radionuclide
Name
Atomic
Number
Final RQ Curies
(Bq)
Plutonium-239
94
0.01 (3.7E 8)
Plutonium-240
94
0.01 (3.7E 8)
Plutonium-241
94
1 (3.7E 10)
Plutonium-242
94
0.01 (3.7E 8)
Plutonium-243
94
1000 (3.7E 13)
Plutonium-244
94
0.01 (3.7E 8)
Plutonium-245
94
100 (3.7E 12)
Polonium-203
84
100 (3.7E 12)
Polonium-205
84
100 (3.7E 12)
Polonium-207
84
10 (3.7E 11)
Polonium-210
84
0.01 (3.7E 8)
Potassium-40
19
1 (3.7E 10)
Potassium-42
19
100 (3.7E 12)
Potassium-43
19
10 (3.7E 11)
Potassium-44
19
100 (3.7E 12)
Potassium-45
19
1000 (3.7E 13)
Praseodymium-
136
59
1000 (3.7E 13)
Praseodymium-
137
59
1000 (3.7E 13)
Praseodymium-
138m
59
100 (3.7E 12)
Praseodymium-
139
59
1000 (3.7E 13)
Praseodymium-
142m
59
1000 (3.7E 13)
Praseodymium-
142
59
100 (3.7E 12)
Praseodymium-
143
59
10 (3.7E 11)
Praseodymium-
144
59
1000 (3.7E 13)
Praseodymium-
145
59
1000 (3.7E 13)
Praseodymium-
147
59
1000 (3.7E 13)
Promethium-141
61
1000 (3.7E 13)
Radionuclide
Name
Atomic
Number
Final RQ Curies
(Bq)
Promethium-143
61
100 (3.7E 12)
Promethium-144
61
10 (3.7E 11)
Promethium-145
61
100 (3.7E 12)
Promethium-146
61
10 (3.7E 11)
Promethium-147
61
10 (3.7E 11)
Promethium-148m
61
10 (3.7E 11)
Promethium-148
61
10 (3.7E 11)
Promethium-149
61
100 (3.7E 12)
Promethium-150
61
100 (3.7E 12)
Promethium-151
61
100 (3.7E 12)
Protactinium-227
91
100 (3.7E 12)
Protactinium-228
91
10 (3.7E 11)
Protactinium-230
91
10 (3.7E 11)
Protactinium-231
91
0.01 (3.7E 8)
Protactinium-232
91
10 (3.7E 11)
Protactinium-233
91
100 (3.7E 12)
Protactinium-234
91
10 (3.7E 11)
Radium-223
88
1 (3.7E 10)
Radium-224
88
10 (3.7E 11)
Radium-225
88
1 (3.7E 10)
Radium-2260
88
0.1 (3.7E9)
Radium-227
88
1000 (3.7E 13)
Radium-228
88
0.1 (3.7E9)
Radon-220
86
0.1 (3.7E9)
Radon-222
86
0.1 (3.7E9)
Rhenium-177
75
1000 (3.7E 13)
Rhenium-178
75
1000 (3.7E 13)
Rhenium-181
75
100 (3.7E 12)
Rhenium-182 (12.7
hr)
75
10 (3.7E 11)
Rhenium-182 (64.0
hr)
75
10 (3.7E 11)
Rhenium-184m
75
10 (3.7E 11)
Rhenium-184
75
10 (3.7E 11)
B-8
April 2025
-------
U.S. EPA: List of Lists
Appendix B: Radionuclides Listed Under CERCLA
EPA 550-B-24-001
Radionuclide
Name
Atomic
Number
Final RQ Curies
(Bq)
Rhenium-186m
75
10 (3.7E 11)
Rhenium-186
75
100 (3.7E 12)
Rhenium-187
75
1000 (3.7E 13)
Rhenium-188m
75
1000 (3.7E 13)
Rhenium-188
75
1000 (3.7E 13)
Rhenium-189
75
1000 (3.7E 13)
Rhodium-99m
45
100 (3.7E 12)
Rhodium-99
45
10 (3.7E 11)
Rhodium-100
45
10 (3.7E 11)
Rhodium-101m
45
100 (3.7E 12)
Rhodium-101
45
10 (3.7E 11)
Rhodium-102m
45
10 (3.7E 11)
Rhodium-102
45
10 (3.7E 11)
Rhodium-103m
45
1000 (3.7E 13)
Rhodium-105
45
100 (3.7E 12)
Rhodium-106m
45
10 (3.7E 11)
Rhodium-107
45
1000 (3.7E 13)
Rubidium-79
37
1000 (3.7E 13)
Rubidium-81m
37
1000 (3.7E 13)
Rubidium-81
37
100 (3.7E 12)
Rubidium-82m
37
10 (3.7E 11)
Rubidium-83
37
10 (3.7E 11)
Rubidium-84
37
10 (3.7E 11)
Rubidium-86
37
10 (3.7E 11)
Rubidium-88
37
1000 (3.7E 13)
Rubidium-89
37
1000 (3.7E 13)
Rubidium-87
37
10 (3.7E 11)
Ruthenium-94
44
1000 (3.7E 13)
Ruthenium-97
44
100 (3.7E 12)
Ruthenium-103
44
10 (3.7E 11)
Ruthenium-105
44
100 (3.7E 12)
Ruthenium-106
44
1 (3.7E 10)
Samarium-141 m
62
1000 (3.7E 13)
Radionuclide
Name
Atomic
Number
Final RQ Curies
(Bq)
Samarium-141
62
1000 (3.7E 13)
Samarium-142
62
1000 (3.7E 13)
Samarium-145
62
100 (3.7E 12)
Samarium-146
62
0.01 (3.7E 8)
Samarium-147
62
0.01 (3.7E 8)
Samarium-151
62
10 (3.7E 11)
Samarium-153
62
100 (3.7E 12)
Samarium-155
62
1000 (3.7E 13)
Samarium-156
62
100 (3.7E 12)
Scandium-43
21
1000 (3.7E 13)
Scandium-44m
21
10 (3.7E 11)
Scandium-44
21
100 (3.7E 12)
Scandium-46
21
10 (3.7E 11)
Scandium-47
21
100 (3.7E 12)
Scandium-48
21
10 (3.7E 11)
Scandium-49
21
1000 (3.7E 13)
Selenium-70
34
1000 (3.7E 13)
Selenium-73m
34
100 (3.7E 12)
Selenium-73
34
10 (3.7E 11)
Selenium-75
34
10 (3.7E 11)
Selenium-79
34
10 (3.7E 11)
Selenium-81m
34
1000 (3.7E 13)
Selenium-81
34
1000 (3.7E 13)
Selenium-83
34
1000 (3.7E 13)
Silicon-31
14
1000 (3.7E 13)
Silicon-32
14
1 (3.7E 10)
Silver-102
47
100 (3.7E 12)
Silver-103
47
1000 (3.7E 13)
Silver-104m
47
1000 (3.7E 13)
Silver-104
47
1000 (3.7E 13)
Silver-105
47
10 (3.7E 11)
Silver-106m
47
10 (3.7E 11)
Silver-106
47
1000 (3.7E 13)
B-9
April 2025
-------
U.S. EPA: List of Lists
Appendix B: Radionuclides Listed Under CERCLA
EPA 550-B-24-001
Radionuclide
Name
Atomic
Number
Final RQ Curies
(Bq)
Silver-108m
47
10 (3.7E 11)
Silver-110m
47
10 (3.7E 11)
Silver-111
47
10 (3.7E 11)
Silver-112
47
100 (3.7E 12)
Silver-115
47
1000 (3.7E 13)
Sodium-22
11
10 (3.7E 11)
Sodium-24
11
10 (3.7E 11)
Strontium-80
38
100 (3.7E 12)
Strontium-81
38
1000 (3.7E 13)
Strontium-83
38
100 (3.7E 12)
Strontium-85m
38
1000 (3.7E 13)
Strontium-85
38
10 (3.7E 11)
Strontium-87m
38
100 (3.7E 12)
Strontium-89
38
10 (3.7E 11)
Strontium-90
38
0.1 (3.7E9)
Strontium-91
38
10 (3.7E 11)
Strontium-92
38
100 (3.7E 12)
Sulfur-35
16
1 (3.7E 10)
Tantalum-172
73
100 (3.7E 12)
Tantalum-173
73
100 (3.7E 12)
Tantalum-174
73
100 (3.7E 12)
Tantalum-175
73
100 (3.7E 12)
Tantalum-176
73
10 (3.7E 11)
Tantalum-177
73
1000 (3.7E 13)
Tantalum-178
73
1000 (3.7E 13)
Tantalum-179
73
1000 (3.7E 13)
Tantalum-180m
73
1000 (3.7E 13)
Tantalum-180
73
100 (3.7E 12)
Tantalum-182m
73
1000 (3.7E 13)
Tantalum-182
73
10 (3.7E 11)
Tantalum-183
73
100 (3.7E 12)
Tantalum-184
73
10 (3.7E 11)
Tantalum-185
73
1000 (3.7E 13)
Radionuclide
Name
Atomic
Number
Final RQ Curies
(Bq)
Tantalum-186
73
1000 (3.7E 13)
Technetium-93m
43
1000 (3.7E 13)
Technetium-93
43
100 (3.7E 12)
Technetium-94m
43
100 (3.7E 12)
Technetium-94
43
10 (3.7E 11)
Technetium-96m
43
1000 (3.7E 13)
Technetium-96
43
10 (3.7E 11)
Technetium-97m
43
100 (3.7E 12)
Technetium-97
43
100 (3.7E 12)
Technetium-98
43
10 (3.7E 11)
Technetium-99m
43
100 (3.7E 12)
Technetium-99
43
10 (3.7E 11)
Technetium-101
43
1000 (3.7E 13)
Technetium-104
43
1000 (3.7E 13)
Tellurium-116
52
1000 (3.7E 13)
Tellurium-121m
52
10 (3.7E 11)
Tellurium-121
52
10 (3.7E 11)
Tellurium-123m
52
10 (3.7E 11)
Tellurium-123
52
10 (3.7E 11)
Tellurium-125m
52
10 (3.7E 11)
Tellurium-127m
52
10 (3.7E 11)
Tellurium-127
52
1000 (3.7E 13)
Tellurium-129m
52
10 (3.7E 11)
Tellurium-129
52
1000 (3.7E 13)
Tellurium-131m
52
10 (3.7E 11)
Tellurium-131
52
1000 (3.7E 13)
Tellurium-132
52
10 (3.7E 11)
Tellurium-133m
52
1000 (3.7E 13)
Tellurium-133
52
1000 (3.7E 13)
Tellurium-134
52
1000 (3.7E 13)
Terbium-147
65
100 (3.7E 12)
Terbium-149
65
100 (3.7E 12)
Terbium-150
65
100 (3.7E 12)
B-10
April 2025
-------
U.S. EPA: List of Lists
Appendix B: Radionuclides Listed Under CERCLA
EPA 550-B-24-001
Radionuclide
Name
Atomic
Number
Final RQ Curies
(Bq)
Terbium-151
65
10 (3.7E 11)
Terbium-153
65
100 (3.7E 12)
Terbium-154
65
10 (3.7E 11)
Terbium-155
65
100 (3.7E 12)
Terbium-156m (5.0
hr)
65
1000 (3.7E 13)
Terbium-156m
(24.4 hr)
65
1000 (3.7E 13)
Terbium-156
65
10 (3.7E 11)
Terbium-157
65
100 (3.7E 12)
Terbium-158
65
10 (3.7E 11)
Terbium-160
65
10 (3.7E 11)
Terbium-161
65
100 (3.7E 12)
Thallium-194m
81
100 (3.7E 12)
Thallium-194
81
1000 (3.7E 13)
Thallium-195
81
100 (3.7E 12)
Thallium-197
81
100 (3.7E 12)
Thallium-198m
81
100 (3.7E 12)
Thallium-198
81
10 (3.7E 11)
Thallium-199
81
100 (3.7E 12)
Thallium-200
81
10 (3.7E 11)
Thallium-201
81
1000 (3.7E 13)
Thallium-202
81
10 (3.7E 11)
Thallium-204
81
10 (3.7E 11)
Thorium-226
90
100 (3.7E 12)
Thorium-227
90
1 (3.7E 10)
Thorium-228
90
0.01 (3.7E 8)
Thorium-229
90
0.001 (3.7E 7)
Thorium-230
90
0.01 (3.7E 8)
Thorium-231
90
100 (3.7E 12)
Thorium-2320
90
0.001 (3.7E 7)
Thorium-234
90
100 (3.7E 12)
Thulium-162
69
1000 (3.7E 13)
Thulium-166
69
10 (3.7E 11)
Radionuclide
Name
Atomic
Number
Final RQ Curies
(Bq)
Thulium-167
69
100 (3.7E 12)
Thulium-170
69
10 (3.7E 11)
Thulium-171
69
100 (3.7E 12)
Thulium-172
69
100 (3.7E 12)
Thulium-173
69
100 (3.7E 12)
Thulium-175
69
1000 (3.7E 13)
Tin-110
50
100 (3.7E 12)
Tin-111
50
1000 (3.7E 13)
Tin-113
50
10 (3.7E 11)
Tin-117m
50
100 (3.7E 12)
Tin-119m
50
10 (3.7E 11)
Tin-121m
50
10 (3.7E 11)
Tin-121
50
1000 (3.7E 13)
Tin-123m
50
1000 (3.7E 13)
Tin-123
50
10 (3.7E 11)
Tin-125
50
10 (3.7E 11)
Tin-126
50
1 (3.7E 10)
Tin-127
50
100 (3.7E 12)
Tin-128
50
1000 (3.7E 13)
Titanium-44
22
1 (3.7E 10)
Titanium-45
22
1000 (3.7E 13)
Tungsten-176
74
1000 (3.7E 13)
Tungsten-177
74
100 (3.7E 12)
Tungsten-178
74
100 (3.7E 12)
Tungsten-179
74
1000 (3.7E 13)
Tungsten-181
74
100 (3.7E 12)
Tungsten-185
74
10 (3.7E 11)
Tungsten-187
74
100 (3.7E 12)
Tungsten-188
74
10 (3.7E 11)
Uranium-230
92
1 (3.7E 10)
Uranium-231
92
1000 (3.7E 13)
Uranium-232
92
0.01 (3.7E 8)
Uranium-233
92
0.1 (3.7E9)
B-ll
April 2025
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U.S. EPA: List of Lists
Appendix B: Radionuclides Listed Under CERCLA
EPA 550-B-24-001
Radionuclide
Name
Atomic
Number
Final RQ Curies
(Bq)
Uranium-234cp
92
0.1 (3.7E9)
Uranium-235cp
92
0.1 (3.7E9)
Uranium-236
92
0.1 (3.7E9)
Uranium-237
92
100 (3.7E 12)
Uranium-238cp
92
0.1 & (3.7E 9)
Uranium-239
92
1000 (3.7E 13)
Uranium-240
92
1000 (3.7E 13)
Vanadium-47
23
1000 (3.7E 13)
Vanadium-48
23
10 (3.7E 11)
Vanadium-49
23
1000 (3.7E 13)
Xenon-120
54
100 (3.7E 12)
Xenon-121
54
10 (3.7E 11)
Xenon-122
54
100 (3.7E 12)
Xenon-123
54
10 (3.7E 11)
Xenon-125
54
100 (3.7E 12)
Xenon-127
54
100 (3.7E 12)
Xenon-129m
54
1000 (3.7E 13)
Xenon-131m
54
1000 (3.7E 13)
Xenon-133m
54
1000 (3.7E 13)
Xenon-133
54
1000 (3.7E 13)
Xenon-135m
54
10 (3.7E 11)
Xenon-135
54
100 (3.7E 12)
Xenon-138
54
10 (3.7E 11)
Ytterbium-162
70
1000 (3.7E 13)
Ytterbium-166
70
10 (3.7E 11)
Ytterbium-167
70
1000 (3.7E 13)
Ytterbium-169
70
10 (3.7E 11)
Ytterbium-175
70
100 (3.7E 12)
Ytterbium-177
70
1000 (3.7E 13)
Ytterbium-178
70
1000 (3.7E 13)
Yttrium-86m
39
1000 (3.7E 13)
Yttrium-86
39
10 (3.7E 11)
Yttrium-87
39
10 (3.7E 11)
Radionuclide
Name
Atomic
Number
Final RQ Curies
(Bq)
Yttrium-88
39
10 (3.7E 11)
Yttrium-90m
39
100 (3.7E 12)
Yttrium-90
39
10 (3.7E 11)
Yttrium-91m
39
1000 (3.7E 13)
Yttrium-91
39
10 (3.7E 11)
Yttrium-92
39
100 (3.7E 12)
Yttrium-93
39
100 (3.7E 12)
Yttrium-94
39
1000 (3.7E 13)
Yttrium-95
39
1000 (3.7E 13)
Zinc-62
30
100 (3.7E 12)
Zinc-63
30
1000 (3.7E 13)
Zinc-65
30
10 (3.7E 11)
Zinc-69m
30
100 (3.7E 12)
Zinc-69
30
1000 (3.7E 13)
Zinc-71 m
30
100 (3.7E 12)
Zinc-72
30
100 (3.7E 12)
Zirconium-86
40
100 (3.7E 12)
Zirconium-88
40
10 (3.7E 11)
Zirconium-89
40
100 (3.7E 12)
Zirconium-93
40
1 (3.7E 10)
Zirconium-95
40
10 (3.7E 11)
Zirconium-97
40
10 (3.7E 11)
B-12
April 2025
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U.S. EPA: List of Lists
Appendix B: Radionuclides Listed Under CERCLA
EPA 550-B-24-001
NOTES:
Ci—Curie. The curie represents a rate of radioactive decay. One curie is the quantity of any radioactive nuclide which
undergoes 3.7E 10 disintegrations per second.
Bq—Becquerel. The becquerel represents a rate of radioactive decay. One becquerel is the quantity of any radioactive nuclide
which undergoes one disintegration per second. One curie is equal to 3.7E 10 becquerel.
(i—Final RQs for all radionuclides apply to chemical compounds containing the radionuclides and elemental forms
regardless of the diameter of pieces of solid material.
&—The adjusted RQ of one curie applies to all radionuclides not otherwise listed. Whenever the RQs in the Consolidated
List of Chemicals subject to EPCRA, CERCLA and Section 112(r) of CAA and this Appendix B are in conflict, the lowest
RQ shall apply. For example, uranyl acetate and uranyl nitrate have adjusted RQs shown in the CAS number ordered
chemical list and the alphabetical chemical list (Appendix A) of 100 pounds, equivalent to about one-tenth the RQ level for
uranium-238 listed in this appendix.
E—Exponent to the base 10. For example, 1.3E 2 is equal to 130 while 1.3E 3 is equal to 1300.
m—Signifies a nuclear isomer which is a radionuclide in a higher energy metastable state relative to the parent isotope.
cp—Notification requirements for releases of mixtures or solutions of radionuclides can be found in 40 CFR §302.6(b)(2).
Final RQs for the following four common radionuclide mixtures are provided: radium-226 in secular equilibrium with its
daughters (0.053 curie); natural uranium (0.1 curie); natural uranium in secular equilibrium with its daughters (0.052 curie);
and natural thorium in secular equilibrium with its daughters (0.011 curie)
B-13
April 2025
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U.S. EPA: List of Lists EPA 550-B-24-001
Appendix C: RCRA Waste Streams and Unlisted Hazardous Wastes
Appendix C: RCRA Waste Streams and Unlisted Hazardous Wastes
The list below contains RCRA Waste Streams and Unlisted Hazardous Wastes.
The descriptions of the waste streams have been truncated.
For Reference Only ~ Not For Regulatory Compliance
See 40 CFR 302.4 and Appendix A for the Official Lists
RCRA
CODE
RQ
NAME
F001
10
The following spent halogenated solvents used in degreasing:
100
(a) Tetrachloroethylene (CAS No. 127-18-4, RCRA Waste No. U210)
100
(b) Trichloroethylene (CAS No. 79-01-6, RCRA Waste No. U228)
1,000
(c) Methylene chloride (CAS No. 75-09-2, RCRA Waste No. U080)
1,000
(d) 1,1,1-Trichloroethane (CAS No. 71-55-6, RCRA Waste No. U226)
10
(e) Carbon tetrachloride (CAS No. 56-23-5, RCRA Waste No. U211)
5,000
(f) Chlorinated fluorocarbons
F002
10
The following spent halogenated solvents:
100
(a) Tetrachloroethylene (CAS No. 127-18-4, RCRA Waste No. U210)
1,000
(b) Methylene chloride (CAS No. 75-09-2, RCRA Waste No. U080)
100
(c) Trichloroethylene (CAS No. 79-01-6, RCRA Waste No. U228)
1,000
(d) 1,1,1-Trichloroethane (CAS No. 71-55-6, RCRA Waste No. U226)
100
(e) Chlorobenzene (CAS No. 108-90-7, RCRA Waste No. U037)
5,000
(f) 1,1,2-Trichloro-1,2,2-trifluoroethane (CAS No. 76-13-1)
100
(g) o-Dichlorobenzene (CAS No. 95-50-1, RCRA Waste No. U070)
5,000
(h) Trichlorofluoromethane (CAS No. 75-69-4, RCRA Waste No. U121)
100
(i) 1,1,2-Trichloroethane (CAS No. 79-00-5, RCRA Waste No. U227)
F003
100
The following spent non-halogenated solvents and still bottoms from recovery:
1,000
(a) Xylene (CAS No. 1330-20-7, RCRA Waste No. U239)
5,000
(b) Acetone (CAS No. 67-64-1, RCRA Waste No. U002)
5,000
(c) Ethyl acetate (CAS No. 141-78-6, RCRA Waste No. U112)
1,000
(d) Ethylbenzene (CAS No. 100-41-4)
100
(e) Ethyl ether (CAS No. 60-29-7, RCRA Waste No. U117)
5,000
(f) Methyl isobutyl ketone (CAS No. 108-10-1, RCRA Waste No. U161)
5,000
(g) n-Butyl alcohol (CAS No. 71-36-3, RCRA Waste No. U031)
5,000
(h) Cyclohexanone (CAS No. 108-94-1, RCRA Waste No. U057)
5,000
(i) Methanol (CAS No. 67-56-1, RCRA Waste No. U154)
F004
100
The following spent non-halogenated solvents and still bottoms from recovery:
100
(a) Cresols/cresylic acid (CAS No. 1319-77-3, RCRA Waste No. U052)
1,000
(b) Nitrobenzene (CAS No. 98-95-3, RCRA Waste No. U169)
C-l
April 2025
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U.S. EPA: List of Lists EPA 550-B-24-001
Appendix C: RCRA Waste Streams and Unlisted Hazardous Wastes
RCRA
CODE
RQ
NAME
F005
100
The following spent non-halogenated solvents and still bottoms from recovery:
1,000
(a) Toluene (CAS No. 108-88-3, RCRA Waste No. U220)
5,000
(b) Methyl ethyl ketone (CAS No. 78-93-3, RCRA Waste No. U159)
100
(c) Carbon disulfide (CAS No. 75-15-0, RCRA Waste No. P022)
5,000
(d) Isobutanol (CAS No. 78-83-1, RCRA Waste No. U140)
1,000
(e) Pyridine (CAS No. 110-86-1, RCRA Waste No. U196)
F006
10
Wastewater treatment sludges from electroplating operations (w/some exceptions)
F007
10
Spent cyanide plating bath solns. from electroplating
F008
10
Plating bath residues from electroplating where cyanides are used
F009
10
Spent stripping/cleaning bath solns. from electroplating where cyanides are used
F010
10
Quenching bath residues from metal heat treating where cyanides are used
F011
10
Spent cyanide soln. from salt bath pot cleaning from metal heat treating
F012
10
Quenching wastewater sludges from metal heat treating where cyanides are used
F019
10
Wastewater treatment sludges from chemical conversion aluminum coating
F020
1
Wastes from production or use of tri/tetrachlorophenol or derivative intermediates
F021
1
Wastes from production or use of pentachlorophenol or intermediates for derivatives
F022
1
Wastes from use of tetra/penta/hexachlorobenzenes under alkaline conditions
F023
1
Wastes from mat. production on equipment previously used fortri\tetrachlorophenol
F024
1
Wastes from production of chlorinated aliphatic hydrocarbons (C1-C5)
F025
1
Lights ends, filters from production of chlorinated aliphatic hydrocarbons (C1-C5)
F026
1
Waste from equipment previously used to production tetra/penta/hexachlorobenzenes
F027
1
Discarded formulations containing tri/tetra/pentachlorophenols or derivatives
F028
1
Residues from incineration of soil contaminated w/ F020,F021 ,F022,F023,F026,F027
F032
1
Wastewaters, process residuals from wood preserving using chlorophenolic solns.
F034
1
Wastewaters, process residuals from wood preserving using creosote formulations
F035
1
Wastewaters, process residuals from wood preserving using arsenic or chromium
F037
1
Petroleum refinery primary oil/water/solids separation sludge
F038
1
Petroleum refinery secondary (emulsified) oil/water/solids separation sludge
F039
1
Multisource leachate
K001
1
Wastewater treatment sludge from creosote/pentachlorophenol wood preserving
K002
10
Wastewater treatment sludge from production of chrome yellow and orange pigments
K003
10
Wastewater treatment sludge from production of molybdate orange pigments
K004
10
Wastewater treatment sludge from production of zinc yellow pigments
K005
10
Wastewater treatment sludge from production of chrome green pigments
K006
10
Wastewater treatment sludge from production of chrome oxide green pigments
K007
10
Wastewater treatment sludge from production of iron blue pigments
K008
10
Oven residue from production of chrome oxide green pigments
K009
10
Dist. bottoms from production of acetaldehyde from ethylene
C-2
April 2025
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U.S. EPA: List of Lists EPA 550-B-24-001
Appendix C: RCRA Waste Streams and Unlisted Hazardous Wastes
RCRA
CODE
RQ
NAME
K010
10
Dist. side cuts from production of acetaldehyde from ethylene
K011
10
Bottom stream from wastewater stripper in acrylonitrile production
K013
10
Bottom stream from acetonitrile column in acrylonitrile production
K014
5,000
Bottoms from acetonitrile purification column in acrylonitrile production
K015
10
Still bottoms from the dist. of benzyl chloride
K016
1
Heavy ends or dist. residues from production of carbon tetrachloride
K017
10
Heavy ends from the purification column in epichlorohydrin production
K018
1
Heavy ends from the fractionation column in ethyl chloride production
K019
1
Heavy ends from the dist. of ethylene dichloride during its production
K020
1
Heavy ends from the dist. of vinyl chloride during production of the monomer
K021
10
Aqueous spent antimony catalyst waste from fluoromethanes production
K022
1
Dist. bottom tars from production of phenol/acetone from cumene
K023
5,000
Dist. light ends from production of phthalic anhydride from naphthalene
K024
5,000
Dist. bottoms from production of phthalic anhydride from naphthalene
K025
10
Dist. bottoms from production of nitrobenzene by nitration of benzene
K026
1,000
Stripping still tails from the production of methyl ethyl pyridines
K027
10
Centrifuge/dist. residues from toluene diisocyanate production
K028
1
Spent catalyst from hydrochlorinator reactor in production of 1,1,1-trichloroethane
K029
1
Waste from product steam stripper in production of 1,1,1-trichloroethane
K030
1
Column bottoms/heavy ends from production of trichloroethylene and perchloroethylene
K031
1
By-product salts generated in the production of MSMA and cacodylic acid
K032
10
Wastewater treatment sludge from the production of chlordane
K033
10
Wastewaster/scrubwater from chlorination of cyclopentadiene in chlordane production
K034
10
Filter solids from filtration of hexachlorocyclopentadiene in chlordane production
K035
1
Wastewater treatment sludges from the production of creosote
K036
1
Still bottoms from toluene reclamation distillation in disulfoton production
K037
1
Wastewater treatment sludges from the production of disulfoton
K038
10
Wastewater from the washing and stripping of phorate production
K039
10
Filter cake from filtration of diethylphosphorodithioic adid in phorate production
K040
10
Wastewater treatment sludge from the production of phorate
K041
1
Wastewater treatment sludge from the production of toxaphene
K042
10
Heavy ends/residues from dist. of tetrachlorobenzene in 2,4,5-T production
K043
10
2,6-Dichlorophenol waste from the production of 2,4-D
K044
10
Wastewater treatment sludge from manuf. and processing of explosives
K045
10
Spent carbon from treatment of wastewater containing explosives
K046
10
Wastewater sludge from manuf., formulating, loading of lead-based initiating compd
K047
10
Pink/red water from TNT operations
K048
10
Dissolved air flotation (DAF) float from the petroleum refining industry
K049
10
Slop oil emulsion solids from the petroleum refining industry
K050
10
Heat exchanger bundle cleaning sludge from petroleum refining industry
C-3
April 2025
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U.S. EPA: List of Lists EPA 550-B-24-001
Appendix C: RCRA Waste Streams and Unlisted Hazardous Wastes
RCRA
CODE
RQ
NAME
K051
10
API separator sludge from the petroleum refining industry
K052
10
Tank bottoms (leaded) from the petroleum refining industry
K060
1
Ammonia still lime sludge from coking operations
K061
10
Emission control dust/sludge from primary production of steel in electric furnaces
K062
10
Spent pickle liquor generated by steel finishing (SIC codes 331 and 332)
K069
10
Emission control dust/sludge from secondary lead smelting
K071
1
Brine purification muds from mercury cell process in chlorine production
K073
10
Chlorinated hydrocarbon waste from diaphragm cell process in chlorine production
K083
100
Distillation bottoms from aniline extraction
K084
1
Wastewater sludges from production of veterinary pharm. from arsenic compds.
K085
10
Distillation or fractionation column bottoms in production of chlorobenzenes
K086
10
Wastes/sludges from production of inks from chromium and lead-containing substances
K087
100
Decanter tank tar sludge from coking operations
K088
10
Spent potliners from primary aluminum reduction
K093
5,000
Dist. light ends from production of phthalic anhydride by ortho-xylene
K094
5,000
Dist. bottoms in production of phthalic anhydride by ortho-xylene
K095
100
Distillation bottoms in production of 1,1,1-trichloroethane
K096
100
Heavy ends from dist. column in production of 1,1,1-trichloroethane
K097
1
Vacuum stripper discharge from the chlordane chlorinator in production of chlordane
K098
1
Untreated process wastewater from the production oftoxaphene
K099
10
Untreated wastewater from the production of 2,4-D
K100
10
Waste leaching soln from emission control dust/sludge in secondary lead smelting
K101
1
Dist. tar residue from aniline in production of veterinary pharm. from arsenic compd.
K102
1
Residue from activated carbon in production of veterinary pharm. from arsenic compds.
K103
100
Process residues from aniline extraction from the production of aniline
K104
10
Combined wastewater streams generated from production of nitrobenzene/aniline
K105
10
Aqueous stream from washing in production of chlorobenzenes
K106
1
Wastewater treatment sludge from mercury cell process in chlorine production
K107
10
Column bottoms from separation in production of UDMH from carboxylic acid hydrazides
K108
10
Condensed column overheads and vent gas from production of UDMH from -COOH
hydrazides
K109
10
Spent filter cartridges from purif. of UDMH production from carboxylic acid hydrazides
K110
10
Condensed column overheads from separation in UDMH production from -COOH
hydrazides
K111
10
Product washwaters from production of dinitrotoluene via nitration of toluene
K112
10
Reaction by-product water from drying in toluenediamine prod from dinitrotoluene
K113
10
Condensed liquid light ends from purification of toluenediamine during its production
K114
10
Vicinals from purification of toluenediamine during its production from dinitrotoluene
K115
10
Heavy ends from toluenediamine purification during production from dinitrotoluene
K116
10
Organic condensate from solvent recovery system in production of toluene diisocyanate
K117
1
Wastewater from vent gas scrubber in ethylene bromide prod by ethene bromination
C-4
April 2025
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U.S. EPA: List of Lists EPA 550-B-24-001
Appendix C: RCRA Waste Streams and Unlisted Hazardous Wastes
RCRA
CODE
RQ
NAME
K118
1
Spent absorbent solids in purification of ethylene dibromide in its production
K123
10
Process wastewater from the production of ethylenebisdithiocarbamic acid and salts
K124
10
Reactor vent scrubber water from prod of ethylenebisdithiocarbamic acid and salts
K125
10
Filtration/other solids from production of ethylenebisdithiocarbamic acid and salts
K126
10
Dust/sweepings from the production of ethylenebisdithiocarbamic acid and salts
K131
100
Wastewater and spent sulfuric acid from the production of methyl bromide
K132
1,000
Spent absorbent and wastewater solids from the production of methyl bromide
K136
1
Still bottoms from ethylene dibromide purif. in production by ethene bromination
K141
1
Process residues from coal tar recovery in coking
K142
1
Tar storage tank residues from coke production from coal or recovery of coke by-prods
K143
1
Process residues from recovery of light oil in coking
K144
1
Wastewater residues from light oil refining in coking
K145
1
Residues from naphthalene collection and recovery from coke by-products
K147
1
Tar storage tank residues from coal tar refining in coking
K148
1
Residues from coal tar distillation, including still bottoms, in coking
K149
10
Distillation bottoms from the production of chlorinated toluenes/benzoyl chlorides
K150
10
Organic residuals from CI gas and HCI recovery from chlorinated toluene production
K151
10
Wastewater treatment sludge from production of chlorotoluenes/benzoyl chlorides
K156
10
Organic waste from production of carbamates and carbamoyl oximes
K157
10
Wastewaters from production of carbamates and carbamoyl oximes (not sludges)
K158
10
Bag house dusts & filter/separation solids from prod of carbamates, carb oximes
K159
10
Organics from treatment of thiocarbamate waste
K161
1
Purif. solids/bag house dust/sweepings from prod of dithiocarbamate acids/salts
K169 f
10
Crude oil storage tank sediment from refining operations
K170 f
1
Clarified slurry oil tank sediment of in-line filter/separation solids
K171 f
1
Spent hydrotreating catalyst
K172 f
1
Spent hydrorefining catalyst
K174 f
1
Wastewater treatment sludges from the production of ethylene dichloride or vinyl chloride
monomer, (including sludges that result from commingled EDC or VCM wastewater and
other wastewater), unless the sludges meet certain disposal conditions. (See 40 CFR
261.32)
K175 f
1
Wastewater treatment sludges from the production vinyl chloride monomer using mercuric
chloride catalyst in an acetylene-based process (See 40 CFR 261.32)
K176
1
Baghouse filters from the production of antimony oxide, including filters from the
production of intermediates (e.g., antimony metal or crude antimony oxide)
K177
5000
Slag from the production of antimony oxide that is speculatively accumulated or disposed,
including slag from the production of intermediates (e.g., antimony metal or crude
antimony oxide)
K178
1000
Residues from manufacturing and manufacturing-site storage of ferric chloride from acids
formed during the production of titanium dioxide using the chloride-ilmenite process
K181
1*
Non-wastewaters generated from the production of certain dyes, pigments, and FD&C
colorants, exceeding constituent mass loading levels, subject to disposal exceptions in 40
CFR 261.32
D001
100
Unlisted hazardous wastes characteristic of ignitability
C-5
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U.S. EPA: List of Lists EPA 550-B-24-001
Appendix C: RCRA Waste Streams and Unlisted Hazardous Wastes
RCRA
CODE
RQ
NAME
D002
100
Unlisted hazardous wastes characteristic of corrosivity
D003
100
Unlisted hazardous wastes characteristic of reactivity
Unlisted hazardous wastes characteristic of toxicity:
D004
1
Arsenic
D005
1,000
Barium
D006
10
Cadmium
D007
10
Chromium
D008
10
Lead
D009
1
Mercury
D010
10
Selenium
D011
1
Silver
D012
1
Endrin
D013
1
Lindane
D014
1
Methoxychlor
D015
1
Toxaphene
D016
100
2,4-D
D017
100
2,4,5-TP
D018
10
Benzene
D019
10
Carbon tetrachloride
D020
1
Chlordane
D021
100
Chlorobenzene
D022
10
Chloroform
D023
100
o-Cresol
D024
100
m-Cresol
D025
100
p-Cresol
D026
100
Cresol
D027
100
1,4-Dichloro benzene
D028
100
1,2-Dichloroethane
D029
100
1,1-Dichloroethylene
D030
10
2,4-Dinitrotoluene
D031
1
Heptachlor (and epoxide)
D032
10
Hexachlorobenzene
D033
1
Hexachlorobutadiene
D034
100
Hexachloroethane
D035
5,000
Methyl ethyl ketone
D036
1,000
Nitrobenzene
D037
10
Pentachlorophenol
D038
1,000
Pyridine
D039
100
Tetrachloroethylene
D040
100
Trichloroethylene
C-6
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Appendix C: RCRA Waste Streams and Unlisted Hazardous Wastes
RCRA
CODE
RQ
NAME
D041
10
2,4,5-Trichlorophenol
D042
10
2,4,6-Trichlorophenol
D043
1
Vinyl chloride
* The Agency may adjust the statutory RQ for this RCRA hazardous substance (K181 waste) in a future rulemaking;
until then the statutory one-pound RQ applies.
f See 40 CFR 302.6(b)(1) for application of the mixture rule to this hazardous waste
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Appendix D: EPCRA Section 313 Toxic Releae Inventory (TRI) Chemical Categories
Appendix D: EPCRA Section 313 Toxic Release Inventory (TRI) Chemical
Categories
The list below contains TRI Chemical Categories and Chemicals.
For Reference Only ~ Not For Regulatory Compliance
See 40 CFR 372.65 for the Official Lists
The EPCRA Section 313, Toxic Release Inventory (TRI) has 34 chemical categories (including seven
categories containing 89 specifically-listed chemicals). Each chemical category is listed below with its
category code and category name.
Source: https://www.epa.gov/toxics-release-inventory-tri-program/tri-listed-chemicals
Also see 40 CFR 372.65.
N010 Antimony Compounds. Includes any unique chemical substance that contains antimony as part
of that chemical's infrastructure.
N020 Arsenic Compounds. Includes any unique chemical substance that contains arsenic as part of
that chemical's infrastructure.
N040 Barium Compounds. Includes any unique chemical substance that contains barium as part of
that chemical's infrastructure. This category does not include: Barium sulfate CAS Number 7727-43-7
N050 Beryllium Compounds. Includes any unique chemical substance that contains beryllium as part
of that chemical's inf rastructure.
N078 Cadmium Compounds. Includes any unique chemical substance that contains cadmium as part
of that chemical's inf rastructure.
N084 Chlorophenols. Includes any chemical substance with the following chemical formula:
OH
Where x = 1 to 5
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Appendix D: EPCRA Section 313 Toxic Releae Inventory (TRI) Chemical Categories
N090 Chromium Compounds. Includes any unique chemical substance that contains chromium as
part of that chemical's infrastructure (except for chromite ore mined in the Transvaal Region of
South Africa and the unreacted ore component of the chromite ore processing residue (COPR).
COPR is the solid waste remaining after aqueous extraction of oxidized chromite ore that has
been combined with soda ash and kiln roasted at approximately 2,000 °F.)
N096 Cobalt Compounds. Includes any unique chemical substance that contains cobalt as part of that
chemical's infrastructure.
N100 Copper Compounds. Includes any unique chemical substance that contains copper as part of that
chemical's infrastructure except copper phthalocyanine compounds that are substituted with only
hydrogen, and or bromine, and or chlorine that meet the following molecular structure definition.
R R
where R = H and/or Br and/or CI only.
N106 Cyanide Compounds. Includes any chemical substance with the following chemical formula:
X CAT where X = any group (except H+) where a formal dissociation can be made. For example KCN
or Ca(CN)2.
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Appendix D: EPCRA Section 313 Toxic Releae Inventory (TRI) Chemical Categories
N120 Diisocyanates. This category includes only those chemicals listed below.
CAS Number
Diisocyanate Chemical Name
38661-72-2
1,3-Bis(methylisocyanate)-cyclohexane
10347-54-3
1,4-Bis(methylisocyanate)-cyclohexane
2556-36-7
1,4-Cyclohexanediisocyanate
134190-37-7
Diethyldiisocyanatobenzene
4128-73-8
4,4'-Diisocyanatodiphenyl ether
75790-87-3
2,4'-Diisocyanatodiphenyl sulfide
91-93-0
3,3'-Dimethoxybenzidine-4,4'-diisocyanate
91-97-4
3,3'-Dimethyl-4,4'-diphenylene diisocyanate
139-25-3
3,3'-Dimethyldiphenyl methane-4,4'-diisocyanate
822-06-0
Hexamethylene-1,6-diisocyanate
4098-71-9
Isophorone diisocyanate
75790-84-0
4-Methyldiphenylmethane-3,4-diisocyanate
5124-30-1
1,1-Methylenebis(4-isocyanatocyclohexane)
101-68-8
4,4'-Methylenedi(phenylisocyanate)
3173-72-6
1,5-Naphthalene diisocyanate
123-61-5
1,3-Phenylene diisocyanate
104-49-4
1,4-Phenylene diisocyanate
9016-87-9
Polymeric diphenylmethane diisocyanate
16938-22-0
2,2,4-Trimethylhexamethylenediisocyanate
15646-96-5
2,4,4-Trimethylhexamethylene diisocyanate
N125 Diisononyl Phthalates. Includes branched alkyl di-esters of 1,2 benzenedicarboxylic acid in
which alkyl ester moieties contain a total of nine carbons. This category includes but is not limited to the
chemicals listed below.
CAS Number
Diisononyl Phthalate Chemical Name
28553-12-0
Diisononyl phthalate
71549-78-5
Branched dinonyl phthalate
14103-61-8
Bis(3,5,5-trimethylhexyl) phthalate
68515-48-0
Di(C8-10, C9 rich) branched alkyl phthalates
20548-62-3
Bis(7-methyloctyl) phthalate
111983-10-9
Bis(3-ethylheptan-2-yl) benzene-1,2-dicarboxylate
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Appendix D: EPCRA Section 313 Toxic Releae Inventory (TRI) Chemical Categories
N150 Dioxin and Dioxin-Like Compounds
(Manufacturing; and the processing or otherwise use of dioxin and dioxin-like compounds if the
dioxin and dioxin-like compounds are present as contaminants in a chemical and if they were
created during the manufacturing of that chemical.) This category includes only those chemicals
listed below.
CAS Number
Dioxin Chemical Name
1746-01-6
2,3,7,8- Tetrachlorodibenzo-p-dioxin
40321-76-4
1,2,3,7,8-Pentachlorodibenzo-p-dioxin
39227-28-6
1,2,3,4,7,8-Hexachlorodibenzo-p-dioxin
57653-85-7
1,2,3,6,7,8-Hexachlorodibenzo-p-dioxin
19408-74-3
1,2,3,7,8,9-Hexachlorodibenzo-p-dioxin
35822-46-9
1,2,3,4,6,7,8-Heptachlorodibenzo-p-dioxin
3268-87-9
1,2,3,4,6,7,8,9-Octachlorodibenzo-p-dioxin
51207-31-9
2,3,7,8-Tetrachlorodibenzofuran
57117-41-6
1,2,3,7,8-Pentachlorodibenzofuran
57117-31-4
2,3,4,7,8-Pentachlorodibenzofuran
70648-26-9
1,2,3,4,7,8-Hexachlorod-benzofuran
57117-44-9
1,2,3,6,7,8-Hexachlorodibenzofuran
72918-21-9
1,2,3,7,8,9-Hexachlorodibenzofuran
60851-34-5
2,3,4,6,7,8-Hexachlorodibenzofuran
67562-39-4
1,2,3,4,6,7,8-Heptachlorodibenzofuran
55673-89-7
1,2,3,4,7,8,9-Heptachlorodibenzofuran
39001-02-0
1,2,3,4,6,7,8,9-Octachlorodibenzofuran
N171 Ethylenebisdithiocarbamic acid, salts and esters (EBDCs). Includes any unique chemical
substance that contains an EBDC or an EBDC salt as part of that chemical's infrastructure.
N230 Certain Glycol Ethers. Includes any chemical substance with the following chemical formula:
R-(OCH2CH2) n-OR'
where n = 1, 2, or 3
R = alkyl C7 or less; or
R = phenyl or alkyl substituted phenyl;
R' = H, or alkyl C7 or less; or
OR' = consisting of carboxylic acid ester, sulfate, phosphate, nitrate, or sulfonate.
N270 Hexabromocyclododecane (This category includes only those chemicals covered by the CAS
numbers listed here). Chemical Category Added for Reporting Year 2017.
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Appendix D: EPCRA Section 313 Toxic Releae Inventory (TRI) Chemical Categories
CAS Number
Hexabromocyclododecane Name
3194-55-6
1,2,5,6,9,10-Hexabromocyclododecane
25637-99-4
Hexabromocyclododecane
N420 Lead Compounds. Includes any unique chemical substance that contains lead as part of that
chemical's infrastructure.
N450 Manganese Compounds. Includes any unique chemical substance that contains manganese as
part of that chemical's infrastructure.
N458 Mercury Compounds. Includes any unique chemical substance that contains mercury as part of
that chemical's infrastructure.
N495 Nickel Compounds. Includes any unique chemical substance that contains nickel as part of that
chemical's infrastructure.
N503 Nicotine and salts. Includes any unique chemical substance that contains nicotine or a nicotine
salt as part of that chemical's infrastructure.
N511 Nitrate compounds (water dissociable; reportable only when in aqueous solution)
N530 Nonylphenol. This category includes only those chemicals listed below.
CAS Number
Nonylphenol Chemical Name
104-40-5
4-Nonylphenol
11066-49-2
Isononylphenol
25154-52-3
Nonylphenol
26543-97-5
4-lsononylphenol
84852-15-3
4-Nonylphenol, branched
90481-04-2
Nonylphenol, branched
11066-49-2
Isononylphenol
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Appendix D: EPCRA Section 313 Toxic Releae Inventory (TRI) Chemical Categories
N535 Nonylphenol ethoxylates (NPEs)
CAS Number
Nonyphenol Ethoxylate Name
7311-27-5
Ethanol, 2-[2-[2-[2-(4-nonylphenoxy)ethoxy]ethoxy]ethoxy]-
9016-45-9
Poly(oxy-1,2-ethanediyl), a-(nonylphenyl)-u>hydroxy-
20427-84-3
Ethanol, 2-[2-(4-nonylphenoxy)ethoxy]-
26027-38-3
Poly(oxy-1,2-ethanediyl), a-(4-nonylphenyl)-u>hydroxy-
26571-11-9
3,6,9,12,15,18,21,24-Octaoxahexacosan-1-ol, 26-(nonylphenoxy)-
27176-93-8
Ethanol, 2-[2-(nonylphenoxy)ethoxy]-
27177-05-5
3,6,9,12,15,18,21 -Heptaoxatricosan-l-ol, 23-(nonylphenoxy)-
27177-08-8
3,6,9,12,15,18,21,24,27-Nonaoxanonacosan-1-ol, 29-(nonylphenoxy)-
27986-36-3
Ethanol, 2-(nonylphenoxy)-
37205-87-1
Poly(oxy-1,2-ethanediyl), a-(isononylphenyl)-u>hydroxy-
51938-25-1
Poly(oxy-1,2-ethanediyl), a-(2-nonylphenyl)-u>hydroxy-
68412-54-4
Poly(oxy-1,2-ethanediyl), a-(nonylphenyl)-u>hydroxy-, branched
127087-87-0
Poly(oxy-1,2-ethanediyl), a-(4-nonylphenyl)-u>hydroxy-, branched
N575 Polybrominated Biphenyls (PBBs). Includes any chemical substance with the following
chemical formula:
N583 Polychlorinated alkanes (CIO to C13) (except for those members of the category that have
an average chain length of 12 carbons and contain an average chlorine content of 60% by weight
which are subject to the 0.1% de minimis). Includes any chemical substance with the following
chemical formula:
CxH2x+2-y Cly
where x = 10 to 13;
y = 3 to 12; and
the average chlorine content ranges from 40-70% with the limiting molecular formulas C10H19C13
and CoHieCl 12.
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Appendix D: EPCRA Section 313 Toxic Releae Inventory (TRI) Chemical Categories
N590 Polycyclic aromatic compounds (PACs). This category includes the chemicals listed below.
CAS Number
PAC Chemical Name
56-55-3
Benz[a]anthracene
205-99-2
Benzo[b]fluoranthene
205-82-3
Benzo[j]fluoranthene
207-08-9
Benzo[k]fluoranthene
206-44-0
Benzo[j,k]fluorene
189-55-9
Benzo[r,s,t]pentaphene
218-01-9
Benzo[a]phenanthrene
50-32-8
Benzo[a]pyrene
226-36-8
Dibenz[a,h]acridine
224-42-0
Dibenz[a,j]acridine
53-70-3
Dibenzo[a,h]anthracene
194-59-2
7H-Dibenzo[c,g]carbazole
5385-75-1
Dibenzo[a,e]fluoranthene
192-65-4
Dibenzo[a,e]pyrene
189-64-0
Dibenzo[a,h]pyrene
191-30-0
Dibenzo[a,l]pyrene
57-97-6
7,12-Dimethylbenz[a]anthracene
42397-64-8
1,6-Dinitropyrene
42397-65-9
1,8-Dinitropyrene
193-39-5
lndeno[1,2,3-cd]pyrene
56-49-5
3-Methylcholanthrene
3697-24-3
5-Methylchrysene
7496-02-8
6-Nitrochrysene
5522-43-0
1-Nitropyrene
57835-92-4
4-Nitropyrene
N725 Selenium Compounds. Includes any unique chemical substance that contains selenium as part of
that chemical's infrastructure.
N740 Silver Compounds. Includes any unique chemical substance that contains silver as part of that
chemical's infrastructure.
N746 Strychnine and salts. Includes any unique chemical substance that contains strychnine or a
strychnine salt as part of that chemical's infrastructure.
N760 Thallium Compounds. Includes any unique chemical substance that contains thallium as part of
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Appendix D: EPCRA Section 313 Toxic Releae Inventory (TRI) Chemical Categories
that chemical's infrastructure.
N770 Vanadium Compounds. Includes any unique chemical substance that contains vanadium as part
of that chemical's infrastructure.
N874 Warfarin and salts. Includes any unique chemical substance that contains warfarin or a warfarin
salt as part of that chemical's infrastructure.
N982 Zinc Compounds. Includes any unique chemical substance that contains zinc as part of that
chemical's infrastructure.
For more details on how to report TRI chemicals and chemical categories, see
https://www.epa.gov/toxics-release-inventorv-tri-program/reporting-tri-facilities
This above webpage also has links to chemical-specific guidance documents for the EPCRA Section 313
chemical categories. Documents are available for:
• Aqueous Ammonia
• Certain Glycol Ethers Category
• Chlorophenols category
• Compounds and Mixtures
• Dioxin and Dioxin-like Compounds Category
• EBDC Acid, Salts and Esters Category and Mixtures Containing Maneb, Metiram, Nabam, and
Zineb
• Hydrochloric Acid Aerosols
• Lead and Lead Compounds Category
• Mercury and Mercury Compounds Category
• Nicotine and salts
• Nitrate compounds
• PFAS Reporting Resources
• Pesticides and Other Persistent Bioaccumulative Toxic Chemicals
• Polychlorinated Alkanes Category
• Polychlorinated Biphenyls (PCBs)
• Polycyclic Aromatic Compounds
• Strychnine and Salts
• Sulfuric Acid Aerosols
• Toxic Chemical Categories
• Warfarin and Salts
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Appendix E: CERCLA Hazardous Substances - Chemical Categories
Appendix E: CERCLA Hazardous Substances - Chemical Categories
This appendix provides further definition or clarification, where available, of CERCLA chemical
categories that are listed with N.A. as the CAS Registry Number in the consolidated list. Many
chemicals that are members of a category may also be listed separately as a CERCLA chemical with its
own RQ. For example, cobaltous bromide, CAS No. 7789-43-7, appears on the CERCLA list separately.
Radionuclides listed under CERCLA are provided in a separate list in Appendix B of this document,
with RQs in Curies. EPCRA section 313 (TRI) Chemical Category definitions are found in Appendix C.
Each CERCLA chemical category in this appendix was designated as a CERCLA hazardous substance
based on a statutory source [See NOTE following 40 CFR 302.4(bVI. The statutory Codes "1", "2", "3",
or "4", shown after each category name, refers to a statutory source, listed in the table below.
Statutory Code
Statutory Source
Applicable CFR citation
1
Section 311(b)(2) of the Clean Water Act
Hazardous Substances 40 CFR 116.4
2
Section 307(a) of the Clean Water Act
Priority Toxic Pollutants 40 CFR 401.15
3
Section 112 of the Clean Air Act
Hazardous Air Pollutants List-
Section 112(b)(1) ofCAA
Revisions to List 40 CFR 60.60-63
4
Section 3001 of RCRA
Hazardous Wastes 40 CFR 261.33(e) and (f)
("P" and "U" Hazardous Waste chemicals)
Endnote reference letters refer to sources of information used to define or clarify the category. These
endnote references appear at the end of the appendix.
Arsenic and Compounds 2, 3
Unless otherwise specified, this listing is defined as including any unique chemical substance
that contains arsenic as part of that chemical's infrastructure.1
Arsenic Compounds (inorganic including arsine)11
Antimony and Compounds 2, 3
Unless otherwise specified, this listing is defined as including any unique chemical substance
that contains antimony as part of that chemical's infrastructure.1 For antimony and compounds,
the term compounds shall include organic and inorganic compounds.111
Beryllium and Compounds 2, 3
Unless otherwise specified, this listing is defined as including any unique chemical substance
that contains beryllium as part of that chemical's infrastructure.1
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Appendix E: CERCLA Hazardous Substances - Chemical Categories
Cadmium and Compounds
2,3
Unless otherwise specified, this listing is defined as including any unique chemical substance
that contains cadmium as part of that chemical's infrastructure.1
Unless otherwise specified, this listing is defined as including any unique chemical substance
that contains chromium as part of that chemical's infrastructure.1
Chlorobenzene 1V
1.2-dichlorobenzene 1V
1.3-di chlorobenzene 1V
1.4-di chlorobenzene 1V
1,2,4-tri chlorobenzene 1V
Hexachlorobenzene1V
Chlorinated Ethanes 2
Chloroethane 1V
1.1-dichloroethane1V
1.2-di chloroethane 1V
1.1.1-trichloroethane 1V
1.1.2-tri chloroethane 1V
1,1,2,2-tetrachloroethane 1V
Hexachloroethane 1V
Chlorinated Phenols 2
2-chlorophenol1V
2,4-dichlorophenol1V
2,4,6-trichlorophenol1V
Parametachlorocresol (4-chloro-3-methyl phenol)1V
Chloroalkyl Ethers 2
Bis(2-chloroethoxy)methane 1V
Bis(2-chloroethyl) ether1V
2-chloroethyl vinyl ether (mixed)1V
Cobalt and Compounds 3
Unless otherwise specified, this listing is defined as including any unique chemical substance
that contains cobalt as part of that chemical's infrastructure.1
Chromium and Compounds
2,3
Chlorinated Benzenes
2
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Appendix E: CERCLA Hazardous Substances - Chemical Categories
Coke Oven Emissions 3
Copper and Compounds 2
Creosote 4
RCRA Toxic hazardous waste code U051 40 CFR 261.33(f)
Creosote, as defined by the American Wood Preservers Association, is a distillate derived from coal tar,
derived by the high temperature carbonization of bituminous coal. Creosote consists primarily of liquid,
solid polycyclic aromatic hydrocarbons (PAHs), other heteronuclear aromatic substances, and some tar
acids and bases. Creosote Oil (Common Name) has the following active ingredients:
Coal Tar CAS Number 8007-45-2
Creosote Oil CAS Number 61789-28-4
Coal Tar Creosote CAS No. 8001-58-9
Currently there are thirteen creosote industrial wood preservative products registered as pesticides with
USEPA under FIFRA. All have "creosote" as part of the product name.v
Cyanides 2,3
Cyanide and Compounds 2, 3
X'CN where X = H' or any other group where a formal dissociation may occur. For example
KCN or Ca(CN)2.vi
Cyanides (soluble salts and complexes, not otherwise specified) P030 Haz. Waste 4
DDT and Metabolites 2
4,4-DDT iv
4.4-DDE (p,p-DDX)iv
4,4-DDD (p,p-TDE)iv
DDT means the compounds DDT, DDD, and DDE as identified by the chemical names: (DDT)-
l,l,l-trichloro-2,2-bis(p-chlorophenyl) ethane and some o,p'-isomers; (DDD) or (TDE)-1,1-
dichloro-2,2-bis(p-chlorophenyl) ethane and some o,p'-isomers; (DDE)-l,l-dichloro-2,2-bis(p-
chlorophenyl) ethylenevu
Endosulfan and Metabolites 2
Alpha-endosulfan 1V
Beta-endosulfan 1V
Endosulfan sulfate 1V
Endrin and metabolites 2
Endrin iv
Endrin aldehyde 1V
Endrin means the compound endrin as identified by the chemical name 1,2,3,4,10,10-
hexachloro-6,7-epoxy-l,4,4a,5,6,7,8,8a-octahydro-l,4-endo-5,8-endodimethanonaphthalene. vu
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Appendix E: CERCLA Hazardous Substances - Chemical Categories
EPA 550-B-24-001
Fine Mineral Fibers
3
Includes mineral fiber emissions from facilities manufacturing or processing glass, rock, or slag
fibers (or other mineral derived fibers) of average diameter 1 micrometer or less. V1
Glycol ethers include mono- and di-ethers of ethylene glycol, diethylene glycol, and triethylene
glycol R-(OCH2CH2)„-OR'. Where:
n = 1, 2, or 3;
R = alkyl C7 or less; or
R = phenyl or alkyl substituted phenyl;
R - H or alkyl C7 or less; or
OR' consisting of carboxylic acid ester, sulfate, phosphate, nitrate, or sulfonate.vm
The substance ethylene glycol monobutyl ether (EGBE,2-Butoxyethanol) (CAS Number 111-76-2) is
deleted from the list of hazardous air pollutants established by 42 U.S.C. 7412(b)(l)[Section 112(b)(1)
of CAA].ix
Haloethers 2
4-chlorophenyl phenyl ether1V
2-bromophenyl phenyl ether1V
Bis(2-chloroisopropyl) ether1V
Haloethers (other than those listed elsewhere; includes chlorophenylphenyl ethers,
bromophenylphenyl ether, bis(dichloroisopropyl) ether, bis-(chloroethoxy) methane and
polychlorinated diphenyl ethers). x
Halomethanes 2
Methylene chloride (dichloromethane)1V
Methyl chloride (chloromethane)1V
Methyl Bromide (bromomethane)1V
Bromoform (tribromomethane)1V
Dichlorobromomethane 1V
Chlorodibromomethane 1V
Halomethanes (other than those listed elsewhere; includes methylene chloride, methylchloride,
methylbromide, bromoform, dichlorobromomethane. x
Heptachlor and Metabolites 2
Glycol Ethers
3
Heptachlor1V
Heptachlor epoxide (BHC-hexachlorocyclohexane)1V
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Appendix E: CERCLA Hazardous Substances - Chemical Categories
Lead and Compounds 2, 3
Unless otherwise specified, this listing is defined as including any unique chemical substance
that contains lead as part of that chemical's infrastructure.1
Manganese and Compounds 3
Unless otherwise specified, this listing is defined as including any unique chemical substance
that contains manganese as part of that chemical's infrastructure.1
Mercury and Compounds 2, 3
Unless otherwise specified, this listing is defined as including any unique chemical substance
that contains mercury as part of that chemical's infrastructure.1
Nickel and Compounds 2, 3
Unless otherwise specified, this listing is defined as including any unique chemical substance
that contains nickel as part of that chemical's infrastructure.1
Nitrosamines 2
N-nitrosodimethylamine 1V
N-nitrosodiphenylamine 1V
N-nitrosodi-n-propylamine 1V
Nitrophenols (other than chlorinated) 2
2-nitrophenol1V
4-nitrophenol1V
2,4-dinitrophenol1V
4,6-dinitro-o-cresol (4,6-dinitro-2-methylphenol)1V
Pentachlorophenol1V
Phenol1V
2,4-dimethylphenol1V
Nitrophenols (including 2,4-dinitrophenol, dinitrocresol).x
Phthalate Esters 2
Bis(2-ethylhexyl)phthalate 1V
Butyl benzyl phthalate 1V
Di-N-butyl phthalate1V
Di-n-octyl phthalate 1V
Diethyl phthalate 1V
Dimethyl phthalate 1V
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Appendix E: CERCLA Hazardous Substances - Chemical Categories
Polychlorinated Biphenyls (PCBs) 1, 2, 3
PCB-1242 (Arochlor 1242)iv
PCB-1254 (Arochlor 1254)iv
PCB-1221 (Arochlor 1221)iv
PCB-1232 (Arochlor 1232)iv
PCB-1248 (Arochlor 1248)iv
PCB-1260 (Arochlor 1260)iv
PCB-1016 (Arochlor 1016)iv
Polychlorinated Biphenyls (PCBs) means a mixture of compounds composed of the biphenyl
molecule which has been chlorinated to varying degrees.
Polycyclic Organic Matter 3
Includes organic compounds with more than one benzene ring, and which have a boiling point
greater than or equal to 100° C.
Polynuclear Aromatic Hydrocarbons (PAHs) 2
Acenaphthene1V
I,2-benzanthracene (benzo(a) anthracene)1V
Benzo(a)pyrene (3,4-benzo-pyrene)1V
3,4-benzofluoranthene (benzo(b) fluoranthene)1V
II,12-benzofluoranthene (benzo(k) fluoranthene)1V
Chrysene 1V
Acenaphthalene1V
Anthracene 1V
1,12-benzoperylene (benzo (ghi) perylene)1V
Fluorene 1V
Fluoranthene 1V
Phenanthrene 1V
1,2,5,6-bibenzanthracene (dibenzo(ah) anthracene)1V
Indeno (1,2,3-cd) pyrene (2,3-o-phenylene pyrene)1V
Pyrene 1V
Polynuclear aromatic hydrocarbons (including benzanthracenes, benzopyrenes,
benzofluoranthene, chrysenes, dibenz-anthracenes, and indenopyrenes).x
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U.S. EPA: List of Lists EPA 550-B-24-001
Appendix E: CERCLA Hazardous Substances - Chemical Categories
Radionuclides 3
A type of atom which spontaneously undergoes radioactive decay.V1
*See Appendix B in this document.
Selenium and Compounds 2, 3
Unless otherwise specified, this listing is defined as including any unique chemical substance
that contains selenium as part of that chemical's infrastructure.1
Silver and Compounds 2, 3
Unless otherwise specified, this listing is defined as including any unique chemical substance
that contains silver as part of that chemical's infrastructure.1
Thallium and Compounds 2
Zinc and Compounds 2
Endnotes
i. 42 U.S.C. 7412(b)(l)-[Section 112(b)(1) of CAA] "NOTE" after the Initial List of Pollutants: For all listings above which
contain the word "compounds" ... the following applies: Unless otherwise specified, these listings are defined as
including any unique chemical substance that contains the named chemical (i.e., antimony, arsenic, etc.) as part of that
chemical's infrastructure.
ii. 42 U.S.C. 7412(b)(l)-[Section 112(b)(1) of CAA] Initial List of Pollutants.
iii. 40 CFR 401.15 footnote 2 (for antimony and compounds only).
iv. USEPA. 1994. Water Quality Standards Handbook, Second Edition, Appendix P- List of 126 CWA Section 307(a)
Priority Toxic Pollutants, http://water.epa.gov/scitecli/swguidance/standards/handbook or
https://www.epa.gov/sites/production/files/2014-10/documents/liandbook-appendixp.pdf
v. USEPA. Sept 2008. Reregistration Eligibility Decision for Creosote (Case 0139).
https://www3.epa.gov/pesticides/chem search/reg actions/reregistration/red PC-025004 25-Sep-08.pdf
vi. 42 U.S.C. 7412(b)(l)-[Section 112(b)(1) of CAA] Footnotes after Initial List of Pollutants.
vii. 40 CFR 129.4 Toxic Pollutants.
viii. 40 CFR 63.62 Redefinition of glycol ethers.
ix. 40 CFR 63.63 Deletion of ethylene glycol monobutyl ether from the list of hazardous air pollutants.
x. 40 CFR 401.15 Toxic Pollutants List.
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