40 CFR Table 4 to Subpart F of Part 63: Table 4 to Subpart F of Part 63—Organic Hazardous Air Pollutants Subject to Cooling Tower Monitoring Requirements in § 63.104

Chemical name CAS Number a

Acetaldehyde 75070

Acetonitrile 75058

Acetophenone 98862

Acrolein 107028

Acrylonitrile 107131

Allyl chloride 107051

Aniline 62533

Anisidine (o-) 90040

Benzene 71432

Benzyl chloride 100447

Biphenyl 92524

Bromoform 75252

Butadiene (1,3-) 106990

Carbon disulfide 75150

Carbon tetrachloride 56235

Chloroacetophenone (2-) 532274

Chlorobenzene 108907

2-Chloro-1,3-butadiene (Chloroprene) 126998

Chloroform 67663

Cresol and cresylic acid (o-) 95487

Cresol and cresylic acid (m-) 108394

Cresol and cresylic acid (p-) 106445

Cumene 98828

Dichlorobenzene (p-) 106467

Dichlorobenzidine (3,3″-) 91941

Dichloroethane (1,2-) (Ethylene dichloride) (EDC) 107062

Dichloroethyl ether (Bis(2-chloroethyl)ether) 111444

Dichloropropene (1,3-) 542756

Diethylene glycol diethyl ether 112367

Diethylene glycol dimethyl ether 111966

Diethyl sulfate 64675

Dimethylaniline (N,N-) 121697

Dimethylhydrazine (1,1-) 57147

Dimethyl phthalate 131113

Dimethyl sulfate 77781

Dinitrophenol (2,4-) 51285

Dinitrotoluene (2,4-) 121142

Dioxane (1,4-) (1,4-Diethyleneoxide) 123911

Epichlorohydrin (1-Chloro-2,3-epoxypropane) 106898

Ethyl acrylate 140885

Ethylbenzene 100414

Ethyl chloride (Chloroethane) 75003

Ethylene dibromide (Dibromoethane) 106934

Ethylene glycol dimethyl ether 110714

Ethylene glycol monobutyl ether acetate 112072

Ethylene glycol monoethyl ether acetate 111159

Ethylene glycol monoethyl ether 110805

Ethylene glycol monomethyl ether 109864

Ethylene glycol monomethyl ether acetate 110496

Ethylene glycol monopropyl ether 2807309

Ethylene oxide 75218

Ethylidene dichloride (1,1-Dichloroethane) 75343

Formaldehyde 50000

Hexachlorobenzene 118741

Hexachlorobutadiene 87683

Hexachloroethane 67721

Hexane 110543

Isophorone 78591

Methanol 67561

Methyl bromide (Bromomethane) 74839

Methyl chloride (Chloromethane) 74873

Methyl hydrazine 60344

Methyl isobutyl ketone (Hexone) 108101

Methyl methacrylate 80626

Methyl tert-butyl ether 1634044

Methylene chloride (Dichloromethane) 75092

Methylenedianiline (4,4″-) 101779

Naphthalene 91203

Nitrobenzene 98953

Nitropropane (2-) 79469

Phenol 108952

Phenylenediamine (p-) 106503

Phosgene 75445

Propionaldehyde 123386

Propylene dichloride (1,2-Dichloropropane) 78875

Propylene oxide 75569

Quinone 106514

Styrene 100425

Tetrachloroethane (1,1,2,2-) 79345

Tetrachloroethylene (Perchloroethylene) 127184

Toluene 108883

Toluidine (o-) 95534

Trichlorobenzene (1,2,4-) 120821

Trichloroethane (1,1,1-) (Methyl chloroform) 71556

Trichloroethane (1,1,2-) (Vinyl trichloride) 79005

Trichloroethylene 79016

Trichlorophenol (2,4,5-) 95954

Triethylamine 121448

Trimethylpentane (2,2,4-) 540841

Vinyl acetate 108054

Vinyl chloride (chloroethylene) 75014

Vinylidene chloride (1,1-Dichloroethylene) 75354

Xylene (m-) 108383

Xylene (o-) 95476

Xylene (p-) 106423

a CAS Number = Chemical Abstract Service number.