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Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) Chemicals

EPA developed the list of CERCLA hazardous substances reported to the TRI by comparing the list of chemicals at 40 CFR 302.4 (i.e., "Designation of Hazardous Substances") to the TRI list of reportable toxic chemicals for reporting years 1987 through 2011. In making this comparison, EPA used the individually TRI-listed chemicals (i.e., chemicals identified through Chemical Abstract Service registry number (CASRN)) as well as the TRI chemical categories (e.g., N010, antimony compounds; N106, cyanide compounds).

Note: the TRI chemical categories may include chemicals in the list of CERCLA hazardous substances as well as other chemicals. For example, the TRI chemical category N590, polycyclic aromatic compounds (PACs), includes benzo(a)anthracene, a chemical in the list of CERCLA hazardous substance, as well as 1-nitropyrene, a chemical not in the list of CERCLA hazardous substances. Therefore, the use of TRI chemical categories might result in the overestimation of the actual chemical quantities associated with CERCLA hazardous substances.

TRI CERCLA Chemicals
Row # Chemical Name CAS Number EPA's IRIS Substance File (Risk Information)
1 1,1,1,2-Tetrachloroethane 0000630206  
2 1,1,1-Trichloroethane 0000071556  
3 1,1,2,2-Tetrachloroethane 0000079345  
4 1,1,2-Trichloroethane 0000079005  
5 1,1-Dimethylhydrazine 0000057147  
6 1,2,4-Trichlorobenzene 0000120821  
7 1,2-Butylene oxide 0000106887  
8 1,2-Dibromo-3-chloropropane 0000096128  
9 1,2-Dibromoethane 0000106934  
10 1,2-Dichlorobenzene 0000095501  
11 1,2-Dichloroethane 0000107062  
12 1,2-Dichloropropane 0000078875  
13 1,2-Diphenylhydrazine 0000122667  
14 1,3-Butadiene 0000106990  
15 1,3-Dichlorobenzene 0000541731  
16 1,3-Dichloropropylene 0000542756  
17 1,3-Propane sultone 0001120714  
18 1,4-Dichloro-2-butene 0000764410  
19 1,4-Dichlorobenzene 0000106467  
20 1,4-Dioxane 0000123911  
21 2,3-Dichloropropene 0000078886  
22 2,4,5-Trichlorophenol 0000095954  
23 2,4,6-Trichlorophenol 0000088062  
24 2,4-D 0000094757  
25 2,4-D 2-butoxyethyl ester 0001929733  
26 2,4-D butyl ester 0000094804  
27 2,4-D chlorocrotyl ester 0002971382  
28 2,4-D isopropyl ester 0000094111  
29 2,4-D propylene glycol butyl ether ester 0001320189  
30 2,4-Diaminotoluene 0000095807  
31 2,4-Dichlorophenol 0000120832  
32 2,4-Dimethylphenol 0000105679  
33 2,4-Dinitrophenol 0000051285  
34 2,4-Dinitrotoluene 0000121142  
35 2,4-Dithiobiuret 0000541537  
36 2,6-Dinitrotoluene 0000606202  
37 2-Acetylaminofluorene 0000053963  
38 2-Chloroacetophenone 0000532274  
39 2-Ethoxyethanol 0000110805  
40 2-Methyllactonitrile 0000075865  
41 2-Methylpyridine 0000109068  
42 2-Nitrophenol 0000088755  
43 2-Nitropropane 0000079469  
44 3,3'-Dichlorobenzidine 0000091941  
45 3,3'-Dimethoxybenzidine 0000119904  
46 3,3'-Dimethylbenzidine 0000119937  
47 3-Chloropropionitrile 0000542767  
48 4,4'-Methylenebis(2-chloroaniline) 0000101144  
49 4,4'-Methylenedi(phenyl isocyanate) 0000101688  
50 4,4'-Methylenedianiline 0000101779  
51 4,6-Dinitro-o-cresol 0000534521  
52 4-Aminobiphenyl 0000092671  
53 4-Dimethylaminoazobenzene 0000060117  
54 4-Nitrobiphenyl 0000092933  
55 4-Nitrophenol 0000100027  
56 5-Nitro-o-toluidine 0000099558  
57 Acetaldehyde 0000075070  
58 Acetamide 0000060355  
59 Acetonitrile 0000075058  
60 Acetophenone 0000098862  
61 Acrolein 0000107028  
62 Acrylamide 0000079061  
63 Acrylic acid 0000079107  
64 Acrylonitrile 0000107131  
65 Aldicarb 0000116063  
66 Aldrin 0000309002  
67 Allyl alcohol 0000107186  
68 Allyl chloride 0000107051  
69 Aluminum phosphide 0020859738  
70 Amitrole 0000061825  
71 Ammonia 0007664417  
72 Aniline 0000062533  
73 Anthracene 0000120127  
74 Antimony 0007440360  
75 Antimony compounds N010  
76 Arsenic 0007440382  
77 Arsenic compounds N020  
78 Asbestos (friable) 0001332214  
79 Barium compounds (except for barium sulfate (CAS No. 7727-43-7)) N040  
80 Bendiocarb 0022781233  
81 Benomyl 0017804352  
82 Benzal chloride 0000098873  
83 Benzene 0000071432  
84 Benzidine 0000092875  
85 Benzo[g,h,i]perylene 0000191242  
86 Benzoic trichloride 0000098077  
87 Benzoyl chloride 0000098884  
88 Benzyl chloride 0000100447  
89 Beryllium 0007440417  
90 Beryllium compounds N050  
91 Biphenyl 0000092524  
92 Bis(2-chloro-1-methylethyl) ether 0000108601  
93 Bis(2-chloroethoxy)methane 0000111911  
94 Bis(2-chloroethyl) ether 0000111444  
95 Bis(chloromethyl) ether 0000542881  
96 Bromoform 0000075252  
97 Bromomethane 0000074839  
98 Brucine 0000357573  
99 C.I. Solvent Yellow 34 0000492808  
100 Cadmium 0007440439  
101 Cadmium compounds N078  
102 Calcium cyanamide 0000156627  
103 Captan 0000133062  
104 Carbaryl 0000063252  
105 Carbofuran 0001563662  
106 Carbon disulfide 0000075150  
107 Carbon tetrachloride 0000056235  
108 Carbonyl sulfide 0000463581  
109 Catechol 0000120809  
110 Certain glycol ethers N230  
111 Chloramben 0000133904  
112 Chlordane 0000057749  
113 Chlorine 0007782505  
114 Chloroacetic acid 0000079118  
115 Chlorobenzene 0000108907  
116 Chlorobenzilate 0000510156  
117 Chloroethane 0000075003  
118 Chloroform 0000067663  
119 Chloromethane 0000074873  
120 Chloromethyl methyl ether 0000107302  
121 Chlorophenols N084  
122 Chloroprene 0000126998  
123 Chromium 0007440473  
124 Chromium compounds (except for chromite ore mined in the Transvaal Region) N090  
125 Cobalt compounds N096  
126 Copper 0007440508  
127 Copper compounds N100  
128 Cresol (mixed isomers) 0001319773  
129 Crotonaldehyde 0004170303  
130 Cumene 0000098828  
131 Cumene hydroperoxide 0000080159  
132 Cyanide compounds N106  
133 Cyclohexane 0000110827  
134 Di(2-ethylhexyl) phthalate 0000117817  
135 Diallate 0002303164  
136 Diaminotoluene (mixed isomers) 0025376458  
137 Diazinon 0000333415  
138 Diazomethane 0000334883  
139 Dibenzofuran 0000132649  
140 Dibutyl phthalate 0000084742  
141 Dicamba 0001918009  
142 Dichlorobenzene (mixed isomers) 0025321226  
143 Dichlorobromomethane 0000075274  
144 Dichlorodifluoromethane (CFC-12) 0000075718  
145 Dichloromethane 0000075092  
146 Dichlorvos 0000062737  
147 Dicofol 0000115322  
148 Diepoxybutane 0001464535  
149 Diethanolamine 0000111422  
150 Diethyl sulfate 0000064675  
151 Dihydrosafrole 0000094586  
152 Diisocyanates N120  
153 Dimethoate 0000060515  
154 Dimethyl phthalate 0000131113  
155 Dimethyl sulfate 0000077781  
156 Dimethylamine 0000124403  
157 Dimethylcarbamoyl chloride 0000079447  
158 Dinitrobutyl phenol 0000088857  
159 Dinitrotoluene (mixed isomers) 0025321146  
160 Dioxin and dioxin-like compounds N150  
161 Diuron 0000330541  
162 Epichlorohydrin 0000106898  
163 Ethyl acrylate 0000140885  
164 Ethylbenzene 0000100414  
165 Ethylene glycol 0000107211  
166 Ethylene oxide 0000075218  
167 Ethylene thiourea 0000096457  
168 Ethylenebisdithiocarbamic acid, salts and esters N171  
169 Ethyleneimine 0000151564  
170 Ethylidene dichloride 0000075343  
171 Famphur 0000052857  
172 Fluorine 0007782414  
173 Formaldehyde 0000050000  
174 Formic acid 0000064186  
175 Freon 113 (CFC-113) 0000076131  
176 Furan 0000110009  
177 Heptachlor 0000076448  
178 Hexachloro-1,3-butadiene 0000087683  
179 Hexachlorobenzene 0000118741  
180 Hexachlorocyclopentadiene 0000077474  
181 Hexachloroethane 0000067721  
182 Hexachlorophene 0000070304  
183 Hexamethylphosphoramide 0000680319  
184 Hydrazine 0000302012  
185 Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 0007647010  
186 Hydrogen cyanide 0000074908  
187 Hydrogen fluoride 0007664393  
188 Hydroquinone 0000123319  
189 Isodrin 0000465736  
190 Isoprene 0000078795  
191 Isosafrole 0000120581  
192 Lead 0007439921  
193 Lead compounds N420  
194 Lindane 0000058899  
195 Malathion 0000121755  
196 Maleic anhydride 0000108316  
197 Malononitrile 0000109773  
198 Manganese compounds N450  
199 Mercury 0007439976  
200 Mercury compounds N458  
201 Methacrylonitrile 0000126987  
202 Methanol 0000067561  
203 Methiocarb 0002032657  
204 Methoxychlor 0000072435  
205 Methyl chlorocarbonate 0000079221  
206 Methyl hydrazine 0000060344  
207 Methyl iodide 0000074884  
208 Methyl isobutyl ketone 0000108101  
209 Methyl isocyanate 0000624839  
210 Methyl methacrylate 0000080626  
211 Methyl parathion 0000298000  
212 Methyl tert-butyl ether 0001634044  
213 Methylene bromide 0000074953  
214 Mevinphos 0007786347  
215 N,N-Dimethylaniline 0000121697  
216 N,N-Dimethylformamide 0000068122  
217 N-Nitroso-N-ethylurea 0000759739  
218 N-Nitroso-N-methylurea 0000684935  
219 N-Nitrosodi-n-butylamine 0000924163  
220 N-Nitrosodi-n-propylamine 0000621647  
221 N-Nitrosodiethylamine 0000055185  
222 N-Nitrosodimethylamine 0000062759  
223 N-Nitrosodiphenylamine 0000086306  
224 N-Nitrosomethylvinylamine 0004549400  
225 N-Nitrosomorpholine 0000059892  
226 N-Nitrosopiperidine 0000100754  
227 Naled 0000300765  
228 Naphthalene 0000091203  
229 Nickel 0007440020  
230 Nickel compounds N495  
231 Nicotine and salts N503  
232 Nitrate compounds (water dissociable; reportable only when in aqueous solution) N511  
233 Nitric acid 0007697372  
234 Nitrobenzene 0000098953  
235 Nitroglycerin 0000055630  
236 Osmium tetroxide 0020816120  
237 Paraldehyde 0000123637  
238 Parathion 0000056382  
239 Pentachlorobenzene 0000608935  
240 Pentachloroethane 0000076017  
241 Pentachlorophenol 0000087865  
242 Perchloromethyl mercaptan 0000594423  
243 Phenanthrene 0000085018  
244 Phenol 0000108952  
245 Phosgene 0000075445  
246 Phosphine 0007803512  
247 Phosphorus (yellow or white) 0012185103  
248 Phthalic anhydride 0000085449  
249 Polychlorinated biphenyls 0001336363  
250 Polycyclic aromatic compounds N590  
251 Pronamide 0023950585  
252 Propargite 0002312358  
253 Propargyl alcohol 0000107197  
254 Propionaldehyde 0000123386  
255 Propoxur 0000114261  
256 Propylene oxide 0000075569  
257 Propyleneimine 0000075558  
258 Pyridine 0000110861  
259 Quinoline 0000091225  
260 Quinone 0000106514  
261 Quintozene 0000082688  
262 Saccharin (only persons who manufacture are subject, no supplier notification) 0000081072  
263 Safrole 0000094597  
264 Selenium 0007782492  
265 Selenium compounds N725  
266 Silver 0007440224  
267 Silver compounds N740  
268 Sodium azide 0026628228  
269 Sodium fluoroacetate 0000062748  
270 Sodium nitrite 0007632000  
271 Strychnine and salts N746  
272 Styrene 0000100425  
273 Styrene oxide 0000096093  
274 Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size) 0007664939  
275 Tetrachloroethylene 0000127184  
276 Tetranitromethane 0000509148  
277 Thallium 0007440280  
278 Thallium compounds N760  
279 Thioacetamide 0000062555  
280 Thiodicarb 0059669260  
281 Thiophanate-methyl 0023564058  
282 Thiosemicarbazide 0000079196  
283 Thiourea 0000062566  
284 Thiram 0000137268  
285 Titanium tetrachloride 0007550450  
286 Toluene 0000108883  
287 Toluene diisocyanate (mixed isomers) 0026471625  
288 Toluene-2,4-diisocyanate 0000584849  
289 Toluene-2,6-diisocyanate 0000091087  
290 Toxaphene 0008001352  
291 Triallate 0002303175  
292 Trichlorfon 0000052686  
293 Trichloroethylene 0000079016  
294 Trichlorofluoromethane (CFC-11) 0000075694  
295 Triethylamine 0000121448  
296 Trifluralin 0001582098  
297 Tris(2,3-dibromopropyl) phosphate 0000126727  
298 Trypan blue 0000072571  
299 Urethane 0000051796  
300 Vanadium compounds N770  
301 Vinyl acetate 0000108054  
302 Vinyl bromide 0000593602  
303 Vinyl chloride 0000075014  
304 Vinylidene chloride 0000075354  
305 Warfarin and salts N874  
306 Xylene (mixed isomers) 0001330207  
307 Zinc (fume or dust) 0007440666  
308 Zinc compounds N982  
309 alpha-Hexachlorocyclohexane 0000319846  
310 alpha-Naphthylamine 0000134327  
311 beta-Naphthylamine 0000091598  
312 beta-Propiolactone 0000057578  
313 m-Cresol 0000108394  
314 m-Dinitrobenzene 0000099650  
315 m-Xylene 0000108383  
316 n-Butyl alcohol 0000071363  
317 n-Hexane 0000110543  
318 o-Anisidine 0000090040  
319 o-Cresol 0000095487  
320 o-Dinitrobenzene 0000528290  
321 o-Toluidine 0000095534  
322 o-Toluidine hydrochloride 0000636215  
323 o-Xylene 0000095476  
324 p-Chloroaniline 0000106478  
325 p-Cresol 0000106445  
326 p-Dinitrobenzene 0000100254  
327 p-Nitroaniline 0000100016  
328 p-Phenylenediamine 0000106503  
329 p-Xylene 0000106423  


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