Regulations last checked for updates: May 17, 2024

Title 40 - Protection of Environment last revised: May 15, 2024
Appendix - Table 1 to Subpart F of Part 63—Synthetic Organic Chemical Manufacturing Industry Chemicals
Chemical name a CAS No. b Group
Acenaphthene83329V
Acetal105577V
Acetaldehyde75070II
Acetamide60355II
Acetanilide103844II
Acetic acid64197II
Acetic anhydride108247II
Acetoacetanilide102012III
Acetone67641I
Acetone cyanohydrin75865V
Acetonitrile75058I
Acetophenone98862I
Acrolein107028IV
Acrylamide79061I
Acrylic acid79107IV
Acrylonitrile107131I
Adiponitrile111693I
Alizarin72480V
Alkyl anthraquinones008V
Allyl alcohol107186I
Allyl chloride107051IV
Allyl cyanide109751IV
Aminophenol sulfonic acid0010V
Aminophenol (p-)123308I
Aniline62533I
Aniline hydrochloride142041III
Anisidine (o-)90040II
Anthracene120127V
Anthraquinone84651III
Azobenzene103333I
Benzaldehyde100527III
Benzene71432I
Benzenedisulfonic acid98486I
Benzenesulfonic acid98113I
Benzil134816III
Benzilic acid76937III
Benzoic acid65850III
Benzoin119539III
Benzonitrile100470III
Benzophenone119619I
Benzotrichloride98077III
Benzoyl chloride98884III
Benzyl acetate140114III
Benzyl alcohol100516III
Benzyl benzoate120514III
Benzyl chloride100447III
Benzyl dichloride98873III
Biphenyl92524I
Bisphenol A80057III
Bis(Chloromethyl) Ether542881I
Bromobenzene108861I
Bromoform75252V
Bromonaphthalene27497514IV
Butadiene (1,3-)106990II
Butanediol (1,4-)110634I
Butyl acrylate (n-)141322V
Butylene glycol (1,3-)107880II
Butyrolactone96480I
Caprolactam105602II
Carbaryl63252V
Carbazole86748V
Carbon disulfide75150IV
Carbon tetrabromide558134II
Carbon tetrachloride56235I
Carbon tetrafluoride75730II
Chloral75876II
Chloroacetic acid79118II
Chloroacetophenone (2-)532274I
Chloroaniline (p-)106478II
Chlorobenzene108907I
2-Chloro-1,3-butadiene (Chloroprene)126998II
Chlorodifluoroethane25497294V
Chlorodifluoromethane75456I
Chloroform67663I
Chloronaphthalene25586430IV
Chloronitrobenzene121733I
(m-).
Chloronitrobenzene88733I
(o-).
Chloronitrobenzene100005I
(p-).
Chlorophenol (m-)108430II
Chlorophenol (o-)95578II
Chlorophenol (p-)106489II
Chlorotoluene (m-)108418III
Chlorotoluene (o-)95498III
Chlorotoluene (p-)106434III
Chlorotrifluoromethane75729II
Chrysene218019V
Cresol and cresylic acid (m-)108394III
Cresol and cresylic acid (o-)95487III
Cresol and cresylic acid (p-)106445III
Cresols and cresylic acids (mixed)1319773III
Cumene98828I
Cumene hydroperoxide80159I
Cyanoacetic acid372098II
Cyclohexane110827I
Cyclohexanol108930I
Cyclohexanone108941I
Cyclohexylamine108918III
Cyclooctadienes29965977II
Decahydronaphthalene91178IV
Diacetoxy-2-Butene (1,4-)0012V
Diaminophenol hydrochloride137097V
Dibromomethane74953V
Dichloroaniline (mixed isomers)27134276I
Dichlorobenzene (p-)106467I
Dichlorobenzene (m-)541731I
Dichlorobenzene (o-)95501I
Dichlorobenzidine91941I
(3,3′-).
Dichlorodifluoromethane75718I
Dichloroethane (1,2-) (Ethylenedichloride) (EDC)107062I
Dichloroethyl ether (bis(2-chloroethyl)ether)111444I
Dichloroethylene (1,2-)540590II
Dichlorophenol (2,4-)120832III
Dichloropropene (1,3-)542756II
Dichlorotetrafluoro-1320372V
ethane.
Dichloro-1-butene (3,4-)760236II
Dichloro-2-butene (1,4-)764410V
Diethanolamine (2,2′-Iminodiethanol)111422I
Diethyl sulfate64675II
Diethylamine109897IV
Diethylaniline (2,6-)579668V
Diethylene glycol111466I
Diethylene glycol dibutyl ether112732I
Diethylene glycol diethyl ether112367I
Diethylene glycol dimethyl ether111966I
Diethylene glycol monobutyl ether acetate124174I
Diethylene glycol monobutyl ether112345I
Diethylene glycol monoethyl ether acetate112152I
Diethylene glycol monoethyl ether111900I
Diethylene glycol monohexyl ether112594V
Diethylene glycol monomethyl ether acetate629389V
Diethylene glycol monomethyl ether111773I
Dihydroxybenzoic acid (Resorcylic acid)27138574V
Dimethylbenzidine119937II
(3,3′-).
Dimethyl ether115106IV
Dimethylformamide (N,N-)68122II
Dimethylhydrazine57147II
(1,1-).
Dimethyl sulfate77781I
Dimethyl terephthalate120616II
Dimethylamine124403IV
Dimethylaminoethanol (2-)108010I
Dimethylaniline (N,N′)121697III
Dinitrobenzenes (NOS) c25154545I
Dinitrophenol (2,4-)51285III
Dinitrotoluene (2,4-)121142III
Dioxane (1,4-) (1,4-Diethyleneoxide)123911I
Dioxolane (1,3-)646060I
Diphenyl methane101815I
Diphenyl oxide101848I
Diphenyl thiourea102089III
Diphenylamine122394III
Dipropylene glycol110985I
Di-o-tolyguanidine97392III
Dodecanedioic acid693232I
Dodecyl benzene (branched)123013V
Dodecyl phenol (branched)121158585V
Dodecylaniline28675174V
Dodecylbenzene (n-)121013I
Dodecylphenol27193868III
Epichlorohydrin (1-chloro-2,3-epoxypropane)106898I
Ethanolamine141435I
Ethyl acrylate140885II
Ethylbenzene100414I
Ethyl chloride (Chloroethane)75003IV
Ethyl chloroacetate105395II
Ethylamine75047V
Ethylaniline (N-)103695III
Ethylaniline (o-)578541III
Ethylcellulose9004573V
Ethylcyanoacetate105566V
Ethylene carbonate96491I
Ethylene dibromide (Dibromoethane)106934I
Ethylene glycol107211I
Ethylene glycol diacetate111557I
Ethylene glycol dibutyl ether112481V
Ethylene glycol diethyl ether629141I
(1,2-diethoxyethane).
Ethylene glycol110714I
dimethyl ether
Ethylene glycol monoacetate542596V
Ethylene glycol monobutyl ether112072I
acetate.
Ethylene glycol monobutyl ether111762I
Ethylene glycol monoethyl ether111159I
acetate.
Ethylene glycol monoethyl ether110805I
Ethylene glycol monohexyl ether112254V
Ethylene glycol monomethyl ether acetate110496I
Ethylene glycol monomethyl ether109864I
Ethylene glycol monooctyl ether002V
Ethylene glycol monophenyl ether122996I
Ethylene glycol monopropyl ether2807309I
Ethylene oxide75218I
Ethylenediamine107153II
Ethylenediamine tetraacetic acid60004V
Ethylenimine (Aziridine)151564II
Ethylhexyl acrylate (2-isomer)103117II
Fluoranthene206440V
Formaldehyde50000I
Formamide75127II
Formic acid64186II
Fumaric acid110178I
Glutaraldehyde111308IV
Glyceraldehyde367475V
Glycerol56815II
Glycine56406II
Glyoxal107222II
Hexachlorobenzene118741II
Hexachlorobutadiene87683II
Hexachloroethane67721II
Hexadiene (1,4-)592450II
Hexamethylene-100970I
tetramine.
Hexane110543V
Hexanetriol (1,2,6-)106694IV
Hydroquinone123319I
Hydroxyadipaldehyde141311V
Isobutyl acrylate106638V
Isobutylene115117V
Isophorone78591IV
Isophorone nitrile0017V
Isophthalic acid121915III
Isopropylphenol25168063III
Linear alkylbenzene__ dI
Maleic anhydride108316I
Maleic hydrazide123331I
Malic acid6915157I
Metanilic acid121471I
Methacrylic acid79414V
Methanol67561IV
Methionine63683I
Methyl acetate79209IV
Methyl acrylate96333V
Methyl bromide (Bromomethane)74839IV
Methyl chloride (Chloromethane)74873IV
Methyl ethyl ketone (2-butanone)78933V
Methyl formate107313II
Methyl hydrazine60344IV
Methyl isobutyl carbinol108112IV
Methyl isobutyl ketone (Hexone)108101IV
Methyl isocyanate624839IV
Methyl mercaptan74931IV
Methyl methacrylate80626IV
Methyl phenyl carbinol98851II
Methyl tert-butyl ether1634044V
Methylamine74895IV
Methylaniline (N-)100618III
Methylcyclohexane108872III
Methylcyclohexanol25639423V
Methylcyclohexanone1331222III
Methylene chloride (Dichloromethane)75092I
Methylene dianiline (4,4′-isomer)101779I
Methylene diphenyl diisocyanate (4,4′-) (MDI)101688III
Methylionones (a-)79696V
Methylpentynol77758V
Methylstyrene (a-)98839I
Naphthalene91203IV
Naphthalene sulfonic acid (a-)85472IV
Naphthalene sulfonic acid (b-)120183IV
Naphthol (a-)90153IV
Naphthol (b-)135193IV
Naphtholsulfonic acid (1-)567180V
Naphthylamine sulfonic acid (1,4-)84866V
Naphthylamine sulfonic acid (2,1-)81163V
Naphthylamine (1-)134327V
Naphthylamine (2-)91598V
Nitroaniline (m-)99092II
Nitroaniline (o-)88744I
Nitroanisole (o-)91236III
Nitroanisole (p-)100174III
Nitrobenzene98953I
Nitronaphthalene (1-)86577IV
Nitrophenol (p-)100027III
Nitrophenol (o-)88755III
Nitropropane (2-)79469II
Nitrotoluene (all isomers)1321126III
Nitrotoluene (o-)88722III
Nitrotoluene (m-)99081III
Nitrotoluene (p-)99990III
Nitroxylene25168041V
Nonylbenzene (branched)1081772V
Nonylphenol25154523V
Octene-1111660I
Octylphenol27193288III
Paraformaldehyde30525894I
Paraldehyde123637II
Pentachlorophenol87865III
Pentaerythritol115775I
Peracetic acid79210II
Perchloromethyl mercaptan594423IV
Phenanthrene85018V
Phenetidine (p-)156434III
Phenol108952III
Phenolphthalein77098III
Phenolsulfonic acids (all isomers)1333397III
Phenyl anthranilic acid (all isomers)91407III
Phenylenediamine (p-)106503I
Phloroglucinol108736III
Phosgene75445IV
Phthalic acid88993III
Phthalic anhydride85449III
Phthalimide85416III
Phthalonitrile91156III
Picoline (b-)108996II
Piperazine110850I
Propiolactone (beta-)57578I
Propionaldehyde123386IV
Propionic acid79094I
Propylene carbonate108327V
Propylene dichloride (1,2-dichloropropane)78875IV
Propylene glycol57556I
Propylene glycol monomethyl ether107982I
Propylene oxide75569I
Pyrene129000V
Pyridine110861II
p-tert-Butyl toluene98511III
Quinone106514III
Resorcinol108463I
Salicylic acid69727III
Sodium methoxide124414IV
Sodium phenate139026III
Stilbene588590III
Styrene100425I
Succinic acid110156I
Succinonitrile110612I
Sulfanilic acid121573III
Sulfolane126330II
Tartaric acid526830I
Terephthalic acid100210II
Tetrabromophthalic anhydride632791III
Tetrachlorobenzene (1,2,4,5-)95943I
Tetrachloroethane (1,1,2,2-)79345II
Tetrachloroethylene (Perchloroethylene)127184I
Tetrachlorophthalic-117088III
anhydride.
Tetraethyl lead78002IV
Tetraethylene glycol112607I
Tetraethylene-112572V
pentamine.
Tetrahydrofuran109999I
Tetrahydronapthalene119642IV
Tetrahydrophthalic anhydride85438II
Tetramethylene-110601II
diamine.
Tetramethylethylenediamine110189V
Tetramethyllead75741V
Toluene108883I
Toluene 2,4 diamine95807II
Toluene 2,4 diisocyanate584849II
Toluene diisocyanates (mixture)26471625II
Toluene sulfonic acids104154III
Toluenesulfonyl chloride98599III
Toluidine (o-)95534II
Trichloroaniline-634935III
(2,4,6-).
Trichlorobenzene (1,2,3-)87616V
Trichlorobenzene (1,2,4-)120821I
Trichloroethane71556II
(1,1,1-)
Trichloroethane (1,1,2-) (Vinyl trichloride)79005II
Trichloroethylene79016I
Trichlorofluoromethane75694I
Trichlorophenol95954I
(2,4,5-).
(1,1,2-) Trichloro76131I
(1,2,2-) trifluoroethane.
Triethanolamine102716I
Triethylamine121448IV
Triethylene glycol112276I
Triethylene glycol112492I
dimethyl ether.
Triethylene glycol monoethyl ether112505V
Triethylene glycol monomethyl ether112356I
Trimethylamine75503IV
Trimethylcyclohexanol933482IV
Trimethylcyclo-2408379IV
hexanone.
Trimethylcyclo-34216347V
hexylamine.
Trimethylolpropane77996I
Trimethylpentane (2,2,4-)540841V
Tripropylene glycol24800440V
Vinyl acetate108054II
Vinyl chloride (Chloroethylene)75014I
Vinyl toluene25013154III
Vinylcyclohexene (4-)100403II
Vinylidene chloride75354II
(1,1-dichloroethylene).
Vinyl(N-)-pyrrolidone(2-)88120V
Xanthates140896V
Xylene sulfonic acid25321419III
Xylenes (NOS) c1330207I
Xylene (m-)108383I
Xylene (o-)95476I
Xylene (p-)106423I
Xylenols (Mixed)1300716V
Xylidene1300738III

a Isomer means all structural arrangements for the same number of atoms of each element and does not mean salts, esters, or derivatives.

b CAS Number = Chemical Abstract Service number.

c NOS = not otherwise specified.

d 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]
authority: 42 U.S.C. 7401
source: 57 FR 61992, Dec. 29, 1992, unless otherwise noted.