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------------------------------------------------------------------------
Chemical name<SUP>a</SUP> CAS No.<SUP>b</SUP> Group
------------------------------------------------------------------------
Acenaphthene............................ 83329 V
Acetal.................................. 105577 V
Acetaldehyde............................ 75070 II
Acetamide............................... 60355 II
Acetanilide............................. 103844 II
Acetic acid............................. 64197 II
Acetic anhydride........................ 108247 II
Acetoacetanilide........................ 102012 III
Acetone................................. 67641 I
Acetone cyanohydrin..................... 75865 V
Acetonitrile............................ 75058 I
Acetophenone............................ 98862 I
Acrolein................................ 107028 IV
Acrylamide.............................. 79061 I
Acrylic acid............................ 79107 IV
Acrylonitrile........................... 107131 I
Adiponitrile............................ 111693 I
Alizarin................................ 72480 V
Alkyl anthraquinones.................... 008 V
Allyl alcohol........................... 107186 I
Allyl chloride.......................... 107051 IV
Allyl cyanide........................... 109751 IV
Aminophenol sulfonic acid............... 0010 V
Aminophenol (p-)........................ 123308 I
Aniline................................. 62533 I
Aniline hydrochloride................... 142041 III
Anisidine (o-).......................... 90040 II
Anthracene.............................. 120127 V
Anthraquinone........................... 84651 III
Azobenzene.............................. 103333 I
Benzaldehyde............................ 100527 III
Benzene................................. 71432 I
Benzenedisulfonic acid.................. 98486 I
Benzenesulfonic acid.................... 98113 I
Benzil.................................. 134816 III
Benzilic acid........................... 76937 III
Benzoic acid............................ 65850 III
Benzoin................................. 119539 III
Benzonitrile............................ 100470 III
Benzophenone............................ 119619 I
Benzotrichloride........................ 98077 III
Benzoyl chloride........................ 98884 III
Benzyl acetate.......................... 140114 III
Benzyl alcohol.......................... 100516 III
Benzyl benzoate......................... 120514 III
Benzyl chloride......................... 100447 III
Benzyl dichloride....................... 98873 III
Biphenyl................................ 92524 I
Bisphenol A............................. 80057 III
Bis(Chloromethyl) Ether................. 542881 I
Bromobenzene............................ 108861 I
Bromoform............................... 75252 V
Bromonaphthalene........................ 27497514 IV
Butadiene (1,3-)........................ 106990 II
Butanediol (1,4-)....................... 110634 I
Butyl acrylate (n-)..................... 141322 V
Butylene glycol (1,3-).................. 107880 II
Butyrolactone........................... 96480 I
Caprolactam............................. 105602 II
Carbaryl................................ 63252 V
Carbazole............................... 86748 V
Carbon disulfide........................ 75150 IV
Carbon tetrabromide..................... 558134 II
Carbon tetrachloride.................... 56235 I
Carbon tetrafluoride.................... 75730 II
Chloral................................. 75876 II
Chloroacetic acid....................... 79118 II
Chloroacetophenone (2-)................. 532274 I
Chloroaniline (p-)...................... 106478 II
Chlorobenzene........................... 108907 I
2-Chloro-1,3-butadiene (Chloroprene).... 126998 II
Chlorodifluoroethane.................... 25497294 V
Chlorodifluoromethane................... 75456 I
Chloroform.............................. 67663 I
Chloronaphthalene....................... 25586430 IV
Chloronitrobenzene 121733 I
(m-).
Chloronitrobenzene 88733 I
(o-).
Chloronitrobenzene 100005 I
(p-).
Chlorophenol (m-)....................... 108430 II
Chlorophenol (o-)....................... 95578 II
Chlorophenol (p-)....................... 106489 II
Chlorotoluene (m-)...................... 108418 III
Chlorotoluene (o-)...................... 95498 III
Chlorotoluene (p-)...................... 106434 III
Chlorotrifluoromethane.................. 75729 II
Chrysene................................ 218019 V
Cresol and cresylic acid (m-)........... 108394 III
Cresol and cresylic acid (o-)........... 95487 III
Cresol and cresylic acid (p-)........... 106445 III
Cresols and cresylic acids (mixed)...... 1319773 III
Cumene.................................. 98828 I
Cumene hydroperoxide.................... 80159 I
Cyanoacetic acid........................ 372098 II
Cyclohexane............................. 110827 I
Cyclohexanol............................ 108930 I
Cyclohexanone........................... 108941 I
Cyclohexylamine......................... 108918 III
Cyclooctadienes......................... 29965977 II
Decahydronaphthalene.................... 91178 IV
Diacetoxy-2-Butene (1,4-)............... 0012 V
Diaminophenol hydrochloride............. 137097 V
Dibromomethane.......................... 74953 V
Dichloroaniline (mixed isomers)......... 27134276 I
Dichlorobenzene (p-).................... 106467 I
Dichlorobenzene (m-).................... 541731 I
Dichlorobenzene (o-).................... 95501 I
Dichlorobenzidine 91941 I
(3,3"-).
Dichlorodifluoromethane................. 75718 I
Dichloroethane (1,2-) 107062 I
(Ethylenedichloride) (EDC).
Dichloroethyl ether (bis(2- 111444 I
chloroethyl)ether).
Dichloroethylene (1,2-)................. 540590 II
Dichlorophenol (2,4-)................... 120832 III
Dichloropropene (1,3-).................. 542756 II
Dichlorotetrafluoro- 1320372 V
ethane.
Dichloro-1-butene (3,4-)................ 760236 II
Dichloro-2-butene (1,4-)................ 764410 V
Diethanolamine (2,2'-Iminodiethanol).... 111422 I
Diethyl sulfate......................... 64675 II
Diethylamine............................ 109897 IV
Diethylaniline (2,6-)................... 579668 V
Diethylene glycol....................... 111466 I
Diethylene glycol dibutyl ether......... 112732 I
Diethylene glycol diethyl ether......... 112367 I
Diethylene glycol dimethyl ether........ 111966 I
Diethylene glycol monobutyl ether 124174 I
acetate.
Diethylene glycol monobutyl ether....... 112345 I
Diethylene glycol monoethyl ether 112152 I
acetate.
Diethylene glycol monoethyl ether....... 111900 I
Diethylene glycol monohexyl ether....... 112594 V
Diethylene glycol monomethyl ether 629389 V
acetate.
Diethylene glycol monomethyl ether...... 111773 I
Dihydroxybenzoic acid (Resorcylic acid). 27138574 V
Dimethylbenzidine 119937 II
(3,3'-).
Dimethyl ether.......................... 115106 IV
Dimethylformamide (N,N-)................ 68122 II
Dimethylhydrazine 57147 II
(1,1-).
Dimethyl sulfate........................ 77781 I
Dimethyl terephthalate.................. 120616 II
Dimethylamine........................... 124403 IV
Dimethylaminoethanol (2-)............... 108010 I
Dimethylaniline (N,N").................. 121697 III
Dinitrobenzenes (NOS)<SUP>c</SUP>.................. 25154545 I
Dinitrophenol (2,4-).................... 51285 III
Dinitrotoluene (2,4-)................... 121142 III
Dioxane (1,4-) (1,4-Diethyleneoxide).... 1239 11I
Dioxolane (1,3-)........................ 646060 I
Diphenyl methane........................ 101815 I
Diphenyl oxide.......................... 101848 I
Diphenyl thiourea....................... 102089 III
Diphenylamine........................... 122394 III
Dipropylene glycol...................... 110985 I
Di-o-tolyguanidine...................... 97392 III
Dodecanedioic acid...................... 693232 I
Dodecyl benzene (branched).............. 123013 V
Dodecyl phenol (branched)............... 121158585 V
Dodecylaniline.......................... 28675174 V
Dodecylbenzene (n-)..................... 121013 I
Dodecylphenol........................... 27193868 III
Epichlorohydrin (1-chloro-2,3- 106898 I
epoxypropane).
Ethanolamine............................ 141435 I
Ethyl acrylate.......................... 140885 II
Ethylbenzene............................ 100414 I
Ethyl chloride (Chloroethane)........... 75003 IV
Ethyl chloroacetate..................... 105395 II
Ethylamine.............................. 75047 V
Ethylaniline (N-)....................... 103695 III
Ethylaniline (o-)....................... 578541 III
Ethylcellulose.......................... 9004573 V
Ethylcyanoacetate....................... 105566 V
Ethylene carbonate...................... 96491 I
Ethylene dibromide (Dibromoethane)...... 106934 I
Ethylene glycol......................... 107211 I
Ethylene glycol diacetate............... 111557 I
Ethylene glycol dibutyl ether........... 112481 V
Ethylene glycol diethyl ether 629141 I
(1,2-diethoxyethane).
Ethylene glycol 110714 I
dimethyl ether
Ethylene glycol monoacetate............. 542596 V
Ethylene glycol monobutyl ether 112072 I
acetate.
Ethylene glycol monobutyl ether......... 111762 I
Ethylene glycol monoethyl ether 111159 I
acetate.
Ethylene glycol monoethyl ether......... 110805 I
Ethylene glycol monohexyl ether......... 112254 V
Ethylene glycol monomethyl ether acetate 110496 I
Ethylene glycol monomethyl ether........ 109864 I
Ethylene glycol monooctyl ether......... 002 V
Ethylene glycol monophenyl ether........ 122996 I
Ethylene glycol monopropyl ether........ 2807309 I
Ethylene oxide.......................... 75218 I
Ethylenediamine......................... 107153 II
Ethylenediamine tetraacetic acid........ 60004 V
Ethylenimine (Aziridine)................ 151564 II
Ethylhexyl acrylate (2-isomer).......... 103117 II
Fluoranthene............................ 206440 V
Formaldehyde............................ 50000 I
Formamide............................... 75127 II
Formic acid............................. 64186 II
Fumaric acid............................ 110178 I
Glutaraldehyde.......................... 111308 IV
Glyceraldehyde.......................... 367475 V
Glycerol................................ 56815 II
Glycine................................. 56406 II
Glyoxal................................. 107222 II
Hexachlorobenzene....................... 118741 II
Hexachlorobutadiene..................... 87683 II
Hexachloroethane........................ 67721 II
Hexadiene (1,4-)........................ 592450 II
Hexamethylene- 100970 I
tetramine.
Hexane.................................. 110543 V
Hexanetriol (1,2,6-).................... 106694 IV
Hydroquinone............................ 123319 I
Hydroxyadipaldehyde..................... 141311 V
Isobutyl acrylate....................... 106638 V
Isobutylene............................. 115117 V
Isophorone.............................. 78591 IV
Isophorone nitrile...................... 0017 V
Isophthalic acid........................ 121915 III
Isopropylphenol......................... 25168063 III
Linear alkylbenzene..................... ____ d I
Maleic anhydride........................ 108316 I
Maleic hydrazide........................ 123331 I
Malic acid.............................. 6915157 I
Metanilic acid.......................... 121471 I
Methacrylic acid........................ 79414 V
Methanol................................ 67561 IV
Methionine.............................. 63683 I
Methyl acetate.......................... 79209 IV
Methyl acrylate......................... 96333 V
Methyl bromide (Bromomethane)........... 74839 IV
Methyl chloride (Chloromethane)......... 74873 IV
Methyl ethyl ketone (2-butanone)........ 78933 V
Methyl formate.......................... 107313 II
Methyl hydrazine........................ 60344 IV
Methyl isobutyl carbinol................ 108112 IV
Methyl isobutyl ketone (Hexone)......... 108101 IV
Methyl isocyanate....................... 624839 IV
Methyl mercaptan........................ 74931 IV
Methyl methacrylate..................... 80626 IV
Methyl phenyl carbinol.................. 98851 II
Methyl tert-butyl ether................. 1634044 V
Methylamine............................. 74895 IV
Methylaniline (N-)...................... 100618 III
Methylcyclohexane....................... 108872 III
Methylcyclohexanol...................... 25639423 V
Methylcyclohexanone..................... 1331222 III
Methylene chloride (Dichloromethane).... 75092 I
Methylene dianiline (4,4'-isomer)....... 101779 I
Methylene diphenyl diisocyanate (4,4'-) 101688 III
(MDI).
Methylionones (a-)...................... 79696 V
Methylpentynol.......................... 77758 V
Methylstyrene (a-)...................... 98839 I
Naphthalene............................. 91203 IV
Naphthalene sulfonic acid (a-).......... 85472 IV
Naphthalene sulfonic acid (b-).......... 120183 IV
Naphthol (a-)........................... 90153 IV
Naphthol (b-)........................... 135193 IV
Naphtholsulfonic acid (1-).............. 567180 V
Naphthylamine sulfonic acid (1,4-)...... 84866 V
Naphthylamine sulfonic acid (2,1-)...... 81163 V
Naphthylamine (1-)...................... 134327 V
Naphthylamine (2-)...................... 91598 V
Nitroaniline (m-)....................... 99092 II
Nitroaniline (o-)....................... 88744 I
Nitroanisole (o-)....................... 91236 III
Nitroanisole (p-)....................... 100174 III
Nitrobenzene............................ 98953 I
Nitronaphthalene (1-)................... 86577 IV
Nitrophenol (p-)........................ 100027 III
Nitrophenol (o-)........................ 88755 III
Nitropropane (2-)....................... 79469 II
Nitrotoluene (all isomers).............. 1321126 III
Nitrotoluene (o-)....................... 88722 III
Nitrotoluene (m-)....................... 99081 III
Nitrotoluene (p-)....................... 99990 III
Nitroxylene............................. 25168041 V
Nonylbenzene (branched)................. 1081772 V
Nonylphenol............................. 25154523 V
Octene-1................................ 111660 I
Octylphenol............................. 27193288 III
Paraformaldehyde........................ 30525894 I
Paraldehyde............................. 123637 II
Pentachlorophenol....................... 87865 III
Pentaerythritol......................... 115775 I
Peracetic acid.......................... 79210 II
Perchloromethyl mercaptan............... 594423 IV
Phenanthrene............................ 85018 V
Phenetidine (p-)........................ 156434 III
Phenol.................................. 108952 III
Phenolphthalein......................... 77098 III
Phenolsulfonic acids (all isomers)...... 1333397 III
Phenyl anthranilic acid (all isomers)... 91407 III
Phenylenediamine (p-)................... 106503 I
Phloroglucinol.......................... 108736 III
Phosgene................................ 75445 IV
Phthalic acid........................... 88993 III
Phthalic anhydride...................... 85449 III
Phthalimide............................. 85416 III
Phthalonitrile.......................... 91156 III
Picoline (b-)........................... 108996 II
Piperazine.............................. 110850 I
Propiolactone (beta-)................... 57578 I
Propionaldehyde......................... 123386 IV
Propionic acid.......................... 79094 I
Propylene carbonate..................... 108327 V
Propylene dichloride (1,2- 78875 IV
dichloropropane).
Propylene glycol........................ 57556 I
Propylene glycol monomethyl ether....... 107982 I
Propylene oxide......................... 75569 I
Pyrene.................................. 129000 V
Pyridine................................ 110861 II
p-tert-Butyl toluene.................... 98511 III
Quinone................................. 106514 III
Resorcinol.............................. 108463 I
Salicylic acid.......................... 69727 III
Sodium methoxide........................ 124414 IV
Sodium phenate.......................... 139026 III
Stilbene................................ 588590 III
Styrene................................. 100425 I
Succinic acid........................... 110156 I
Succinonitrile.......................... 110612 I
Sulfanilic acid......................... 121573 III
Sulfolane............................... 126330 II
Tartaric acid........................... 526830 I
Terephthalic acid....................... 100210 II
Tetrabromophthalic anhydride............ 632791 III
Tetrachlorobenzene (1,2,4,5-)........... 95943 I
Tetrachloroethane (1,1,2,2-)............ 79345 II
Tetrachloroethylene (Perchloroethylene). 127184 I
Tetrachlorophthalic- 117088 III
anhydride.
Tetraethyl lead......................... 78002 IV
Tetraethylene glycol.................... 112607 I
Tetraethylene- 112572 V
pentamine.
Tetrahydrofuran......................... 109999 I
Tetrahydronapthalene.................... 119642 IV
Tetrahydrophthalic anhydride............ 85438 II
Tetramethylene- 110601 II
diamine.
Tetramethylethylenediamine.............. 110189 V
Tetramethyllead......................... 75741 V
Toluene................................. 108883 I
Toluene 2,4 diamine..................... 95807 II
Toluene 2,4 diisocyanate................ 584849 II
Toluene diisocyanates (mixture)......... 26471625 II
Toluene sulfonic acids.................. 104154 III
Toluenesulfonyl chloride................ 98599 III
Toluidine (o-).......................... 95534 II
Trichloroaniline- 634935 III
(2,4,6-).
Trichlorobenzene (1,2,3-)............... 87616 V
Trichlorobenzene (1,2,4-)............... 120821 I
Trichloroethane 71556 II
(1,1,1-)
Trichloroethane (1,1,2-) (Vinyl 79005 II
trichloride).
Trichloroethylene....................... 79016 I
Trichlorofluoromethane.................. 75694 I
Trichlorophenol 95954 I
(2,4,5-).
(1,1,2-) Trichloro 76131 I
(1,2,2-) trifluoroethane.
Triethanolamine......................... 102716 I
Triethylamine........................... 121448 IV
Triethylene glycol...................... 112276 I
Triethylene glycol 112492 I
dimethyl ether.
Triethylene glycol monoethyl ether...... 112505 V
Triethylene glycol monomethyl ether..... 112356 I
Trimethylamine.......................... 75503 IV
Trimethylcyclohexanol................... 933482 IV
Trimethylcyclo- 2408379 IV
hexanone.
Trimethylcyclo- 34216347 V
hexylamine.
Trimethylolpropane...................... 77996 I
Trimethylpentane (2,2,4-)............... 540841 V
Tripropylene glycol..................... 24800440 V
Vinyl acetate........................... 108054 II
Vinyl chloride (Chloroethylene)......... 75014 I
Vinyl toluene........................... 25013154 III
Vinylcyclohexene (4-)................... 100403 II
Vinylidene chloride 75354 II
(1,1-dichloroethylene).
Vinyl(N-)-pyrrolidone(2-)............... 88120 V
Xanthates............................... 140896 V
Xylene sulfonic acid.................... 25321419 III
Xylenes (NOS)<SUP>c</SUP>.......................... 1330207 I
Xylene (m-)............................. 108383 I
Xylene (o-)............................. 95476 I
Xylene (p-)............................. 106423 I
Xylenols (Mixed)........................ 1300716 V
Xylidene................................ 1300738 III
------------------------------------------------------------------------
<SUP>a</SUP>Isomer means all structural arrangements for the same number of atoms
of each element and does not mean salts, esters, or derivatives.
<SUP>b</SUP>CAS Number = Chemical Abstract Service number.
<SUP>c</SUP>NOS = not otherwise specified.
<SUP>d</SUP>No CAS number assigned.
[59 FR 19454, Apr. 22, 1994, as amended at 59 FR 48176, Sept. 20, 1994; 61 FR 31439, June 20, 1996; 63 FR 26082, May 12, 1998]