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Note: Please refer to EPA's Toxic Release Inventory website and additional sources noted in each chemical backgrounder, as appropriate.

Chemical Name	CAS No.
2-Nitropropane	79-46-9
1,1-Dichloroethene	75-34-3
1,3-Butadiene	106-99-0
1,4-Dichlorobenzene	106-46-7
2,4-Dinitrotoluene & 2,6-Dinitrotoluene	121-14-2 & 606-20-2
3,3'-Dichlorobenzidine	91-94-1
4,4'-Isopropylidenediphenol	80-05-7
1,1,1-Trichloroethane	71-55-6
1,2,3-Trichloropropane	96-18-4
1,1,2,2-Tetrachloroethane	79-34-5
Acetaldehyde	75-07-0
Acetone	67-64-1
Acetonitrile	75-05-8
Acrylamide	79-06-1S
Acrylic acid	79-10-7
Acrylonitrile	107-13-1
Ammonia (Anhydrous)	7664-41-7
Aniline	62-53-3
Antimony	7440-36-0
Arsenic	7440-38-2
Asbestos	1332-21-4
Benzene	71-43-2
Beryllium	7440-41-7
Bromomethane	74-83-9
Cadmium	7440-43-9
Carbon Disulfide	75-15-0
Carbon Tetrachloride	56-23-5
Chlordane	57-74-9
Chlorine	7782-50-5
Chloroethane	75-00-3
Chlorofluorocarbons	75-71-8
Chloroform	67-66-3
Chloromethane	74-87-3
Chromium	7440-47-3
Cobalt	7440-48-4
Copper	7440-50-8
Creosote	See backgrounder
Cupric Acetate	See backgrounder
Cyanide Compounds	See backgrounder
DDT	50-29-3
Di(2-ethylhexyl) phthalate	117-81-7
Dichloromethane	75-09-2
Diethyl Phthalate	84-66-2
Epichlorohydrin	106-89-8
Ethyl Acrylate	140-88-5
Ethylene oxide	75-21-8
Ethylene glycol	107-21-1
Ethylene	74-85-1
Formaldehyde	50-00-0
Formic Acid	64-18-6
Glycol Ether	See backgrounder
Heptachlor and Heptachlor Epoxide	76-44-8
Hexachlorocyclopentadiene	77-47-4
Hydrochloric Acid	7647-01-0
Hydrocyanic Acid	74-90-8
Hydrogen Cyanide	74-90-8
Manganese	7439-96-5
Mercury	7439-97-6
Methanol	67-56-1
Methyl Ethyl Ketone	78-93-3
Methyl Isobutyl Ketone	108-10-1
Methyl Tert Butyl Ether	1634-04-4
Naphthalene	91-20-3
N-butyl Alcohol	71-36-3
N-Hexane	110-54-3
Nickel	7440-02-0
Nitric Acid	7697-73-2
N-Nitrosodiphenylamine	86-30-6
Pentachlorophenol	87-86-5
Phenol	108-95-2
Phosphoric Acid	7664-38-2
White phosphorus	7723-14-0
Polychlorinated Biphenyls (PCBs)	1336-36-3
Propylene Oxide	75-56-9
Propylene	115-07-1
Pyridine	110-86-1
Selenium	7782-49-2
Styrene	100-42-5
Sulfuric Acid	7664-93-9
Tetrachloroethylene	127-18-4
Toluene	108-88-3
Tributyltin	See backgrounder
Xylenes	See backgrounder