Code of Federal Regulations Title 40. Protection of Environment 40 CFR Pt. 63, Subpt. F, Tbl. 2 Table 2 to Subpart F of Part 63—Organic Hazardous Air Pollutants

Acenaphthene

83329

Acetaldehyde

75070

Acetamide

60355

Acetonitrile

75058

Acetophenone

98862

Acrolein

107028

Acrylamide

79061

Acrylic acid

79107

Acrylonitrile

107131

Alizarin

72480

Allyl chloride

107051

Aniline

62533

Anisidine (o-)

90040

Anthracene

120127

Anthraquinone

84651

Benzene

71432

Benzotrichloride

98077

Benzyl chloride

100447

Biphenyl

92524

Bis(chloromethyl)ether

542881

Bromoform

75252

Bromonaphthalene

27497514

Butadiene (1,3-)

106990

Carbon disulfide

75150

Carbon tetrachloride

56235

Chloroacetic acid

79118

Chloroacetophenone (2-)

532274

Chlorobenzene

108907

2–Chloro–,1,3–butadiene (Chloroprene)

126998

Chloroform

67663

Chloronaphthalene

25586430

Chrysene

218019

Cresols and cresylic acids (mixed)

1319773

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

Dichloroethylether (Bis(2-chloroethyl)ether)

111444

Dichloropropene (1,3-)

542756

Diethanolamine (2,2′-Iminodiethanol)

111422

Dimethylaniline (N,N-)

121697

Diethyl sulfate

64675

Dimethylbenzidine (3,3′-)

119937

Dimethylformamide (N,N-)

68122

Dimethylhydrazine (1,1-)

58147

Dimethylphthalate

131113

Dimethylsulfate

77781

Dinitrophenol (2,4-)

51285

Dinitrotoluene (2,4-)

121142

Dioxane (1,4-) (1,4–Diethyleneoxide)

123911

1,2–Diphenylhydrazine

122667

Epichlorohydrin (1–Chloro–2,3–epoxypropane)

106898

Ethyl acrylate

140885

Ethylbenzene

100414

Ethyl chloride (Chloroethane)

75003

Ethylene dibromide (Dibromoethane)

106934

Ethylene glycol

107211

Ethylene oxide

75218

Ethylidene dichloride (1,1–Dichloroethane)

75343

Fluoranthene

206440

Formaldehyde

50000

Glycol ethers^d

Hexachlorobenzene

118741

Hexachlorobutadiene

87683

Hexachloroethane

67721

Hexane

110543

Hydroquinone

123319

Isophorone

78591

Maleic anhydride

108316

Methanol

67561

Methylbromide (Bromomethane)

74839

Methylchloride (Chloromethane)

74873

Methyl hydrazine

60344

Methyl isobutyl ketone (Hexone)

108101

Methyl isocyanate

624839

Methyl methacrylate

80626

Methyl tert-butyl ether

1634044

Methylene chloride (Dichloromethane)

75092

Methylene diphenyl diisocyanate (4,4′-) (MDI)

101688

Methylenedianiline (4,4′-)

101779

Naphthalene

91203

Naphthalene sulfonic acid (α)

85472

Naphthalene sulfonic acid (ß)

120183

Naphthol (α)

90153

Naphthol (ß)

135193

Naphtholsulfonic acid (1-)

567180

Naphthylamine sulfonic acid (1,4-)

84866

Naphthylamine sulfonic acid (2,1-)

81163

Naphthylamine (1-)

134327

Naphthylamine (2-)

91598

Nitronaphthalene (1-)

86577

Nitrobenzene

98953

Nitrophenol (p-)

100027

Nitropropane (2-)

79469

Phenanthrene

85018

Phenol

108952

Phenylenediamine (p-)

106503

Phosgene

75445

Phthalic anhydride

85449

Propiolactone (beta-)

57578

Propionaldehyde

123386

Propylene dichloride (1,2–Dichloropropane)

78875

Propylene oxide

75569

Pyrene

129000

Quinone

106514

Styrene

100425

Tetrachloroethane (1,1,2,2-)

79345

Tetrachloroethylene (Perchloroethylene)

127184

Tetrahydronaphthalene

119642

Toluene

108883

Toluene diamine (2,4-)

95807

Toluene diisocyanate (2,4-)

584849

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

Xylenes (NOS)

1330207

Xylene (m-)

108383

Xylene (o-)

95476

Xylene (p-)

106423

^a For all Listings above containing 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) as part of that chemical's infrastructure.

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

^c CAS No.=Chemical Abstract Service number.

^d 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 or aryl groups;  and

R′=R, H or groups which, when removed, yield glycol ethers with the structure:

R-(OCH₂CH₂)_n–OH

Polymers are excluded from the glycol category.