1

INITIAL COMPILATION OF CHEMICALS AND SUBSTANCES 

CONSIDERED FOR THE SECOND ENDOCRINE DISRUPTOR 

SCREENING PROGRAM LIST 

Contaminant Candidate List 3 (CCL 3) 

Chemical Name CAS Number 

1,1,1,2-Tetrachloroethane 630-20-6 

1,1-Dichloroethane 75-34-3 

1,2,3-Trichloropropane 96-18-4 

1,3-Butadiene 106-99-0 

1,3-Dinitrobenzene 99-65-0 

1,4-Dioxane 123-91-1 

17alpha-estradiol 57-91-0 

1-Butanol 71-36-3 

2-Methoxyethanol 109-86-4 

2-Propen-1-ol 107-18-6 

3-Hydroxycarbofuran 16655-82-6 

4,4'-Methylenedianiline 101-77-9 

Acephate 30560-19-1 

Acetaldehyde 75-07-0 

Acetamide 60-35-5 

Acetochlor 34256-82-1 

Acetochlor ethanesulfonic acid (ESA) 187022-11-3 

Acetochlor oxanilic acid (OA) 184992-44-4 

Acrolein 107-02-8 

Adenovirus NA 

Alachlor ethanesulfonic acid (ESA) 142363-53-9 

Alachlor oxanilic acid (OA) 171262-17-2 

alpha-Hexachlorocyclohexane 319-84-6 

Anatoxin-a 64285-06-9 

Aniline 62-53-3 

Bensulide 741-58-2 

Benzyl chloride 100-44-7 

Butylated hydroxyanisole 25013-16-5 
2

Chemical Name CAS Number 

Caliciviruses NA 

Campylobacter jejuni NA 

Captan 133-06-2 

Chlorate 14866-68-3 

Chloromethane (Methyl chloride) 74-87-3 

Clethodim 99129-21-2 

Cobalt 7440-48-4 

Cumene hydroperoxide 80-15-9 

Cylindrospermopsin 143545-90-8 

Dicrotophos 141-66-2 

Dimethipin 55290-64-7 

Dimethoate 60-51-5 

Disulfoton 298-04-4 

Diuron 330-54-1 

Enterovirus NA 

equilenin 517-09-9 

equilin 474-86-2 

Erythromycin 114-07-8 

Escherichia coli (0157) NA 

Estradiol (17-beta estradiol) 50-28-2 

estriol 50-27-1 

estrone 53-16-7 

Ethinyl Estradiol (17-alpha ethynyl 

estradiol) 57-63-6 

Ethoprop 13194-48-4 

Ethylene glycol 107-21-1 

Ethylene oxide 75-21-8 

Ethylene thiourea 96-45-7 

Fenamiphos 22224-92-6 

Formaldehyde 50-00-0 

Germanium 7440-56-4 
3

Chemical Name CAS Number 

Halon 1011 (bromochloromethane) 74-97-5 

HCFC-22 75-45-6 

Helicobacter pylori NA 

Hepatitis A virus NA 

Hexane 110-54-3 

Hydrazine 302-01-2 

Legionella pneumophila NA 

Mestranol 72-33-3 

Methamidophos 10265-92-6 

Methanol 67-56-1 

Methyl bromide (Bromomethane) 74-83-9 

Methyl tert-butyl ether 1634-04-4 

Metolachlor 51218-45-2 

Metolachlor ethanesulfonic acid 

(ESA) 171118-09-5 

Metolachlor oxanilic acid (OA) 152019-73-3 

Microcystin-LR 101043-37-2 

Molinate 2212-67-1 

Molybdenum 7439-98-7 

Mycobacterium avium NA 

Naegleria fowleri NA 

Nitrobenzene 98-95-3 

Nitroglycerin 55-63-0 

N-Methyl-2-pyrrolidone 872-50-4 

N-Nitrosodiethylamine (NDEA) 55-18-5 

N-nitrosodimethylamine (NDMA) 62-75-9 

N-Nitroso-di-n-propylamine (NDPA) 621-64-7 

N-Nitrosodiphenylamine 86-30-6 

N-nitrosopyrrolidine (NPYR) 930-55-2 

Norethindrone (19-Norethisterone) 68-22-4 

n-Propylbenzene 103-65-1 
4

Chemical Name CAS Number 

o-Toluidine 95-53-4 

Oxirane, methyl- 75-56-9 

Oxydemeton-methyl 301-12-2 

Oxyfluorfen 42874-03-3 

Perchlorate 14797-73-0 

Perfluorooctane sulfonic acid (PFOS) 1763-23-1 

Perfluorooctanoic acid (PFOA) 335-67-1 

Permethrin 52645-53-1 

Profenofos 41198-08-7 

Quinoline 91-22-5 

RDX 121-82-4 

Salmonella enterica NA 

sec-Butylbenzene 135-98-8 

Shigella sonnei NA 

Strontium 7440-24-6 

Tebuconazole 107534-96-3 

Tebufenozide 112410-23-8 

Tellurium 13494-80-9 

Terbufos 13071-79-9 

Terbufos sulfone 56070-16-7 

Thiodicarb 59669-26-0 

Thiophanate-methyl 23564-05-8 

Toluene diisocyanate 26471-62-5 

Tribufos 78-48-8 

Triethylamine 121-44-8 

Triphenyltin hydroxide (TPTH) 76-87-9 

Urethane 51-79-6 

Vanadium 7440-62-2 

Vinclozolin 50471-44-8 

Ziram 137-30-4 
5

National Primary Drinking Water Regulation Contaminants 

Chemical Name CAS Number 

1,1,1-Trichloroethane 71-55-6 

1,1,2-Trichloroethane 79-00-5 

1,1-Dichloroethylene 75-35-4 

1,2,4-Trichlorobenzene 120-82-1 

1,2-Dibromo-3-chloropropane 

(DBCP) 96-12-8 

1,2-Dichloroethane 107-06-2 

1,2-Dichloropropane 78-87-5 

2,4,5-TP (Silvex) 93-72-1 

2,4-D 94-75-7 

Acrylamide 79-06-1 

Alachlor 15972-60-8 

Alpha emitters 

Antimony 7440-36-0 

Arsenic 

Asbestos 1332-21-4 

Atrazine 1912-24-9 

Barium 7440-39-3 

Benzene 71-43-2 

Benzo(a)pyrene (PAHs) 50-32-8 

Beryllium 7440-41-7 

Beta particles and photon emitters 

Bromate 

Cadmium 7440-43-9 

Carbofuran 1563-66-2 

Carbon tetrachloride 56-23-5 

Chloramines (as Cl2) 10599-90-3 

Chlordane 57-74-9 

Chlorine (as Cl2) 7782-50-5 

Chlorine dioxide (as ClO2) 10049-04-4 

Chlorite 

Chlorobenzene 108-90-7 

Chromium (total) 7440-47-3 

cis-1,2-Dichloroethylene 156-59-2 

Copper (see below) 7440-50-8 

Cryptosporidium NA 
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Chemical Name CAS Number 

Cyanide (as free cyanide) 57-12-5 

Dalapon 75-99-0 

Di(2-ethylhexyl) adipate 103-23-1 

Di(2-ethylhexyl) phthalate 117-81-7 

Dichloromethane 75-09-2 

Dinoseb 88-85-7 

Dioxin (2,3,7,8-TCDD) 1746-01-6 

Diquat 85-00-7 

Endothall 145-73-3 

Endrin 72-20-8 

Epichlorohydrin 106-89-8 

Ethylbenzene 100-41-4 

Ethylene dibromide 106-93-4 

Fluoride 

Giardia lamblia NA 

Glyphosate 1071-83-6 

Haloacetic acids (HAA5) 

Heptachlor 76-44-8 

Heptachlor epoxide 1024-57-3 

Heterotrophic plate count NA 

Hexachlorobenzene 118-74-1 

Hexachlorocyclopentadiene 77-47-4 

Lead 7439-92-1 

Legionella NA 

Lindane 58-89-9 

Mercury (inorganic) 7439-97-6 

Methoxychlor 72-43-5 

Nitrate (measured as Nitrogen) 14797-55-8 

Nitrite (measured as Nitrogen) 14797-65-0 

o-Dichlorobenzene 95-50-1 

Oxamyl (Vydate) 23135-22-0 

p-Dichlorobenzene 106-46-7 

Pentachlorophenol 87-86-5 

Picloram (1918-02-1) 

Polychlorinated biphenyls 1336-36-3 

Radium 226 and Radium 228 

(combined) 

Selenium 7782-49-2 
7

Chemical Name CAS Number 

Simazine 122-34-9 

Styrene 100-42-5 

Tetrachloroethylene 127-18-4 

Thallium 7440-28-0 

Toluene 108-88-3 

Total Coliforms (including fecal 

coliform and E. Coli) NA 

Total Trihalomethanes (TTHMs) 

Toxaphene 8001-35-2 

trans-1,2-Dichloroethylene 156-60-5 

Trichloroethylene 79-01-6 

Turbidity NA 

Uranium 

Vinyl chloride 75-01-4 

Viruses (enteric) NA 

Xylenes (total) 1330-20-7 

 

OPP Registration Review Chemicals for FY 2007-2008 

Chemical Name CAS Number 

Acetic acid, and salts 

Carbon and CO2 

Clethodim 99129-21-2 

Clofentezine 74115-24-5 

Clomazone 81777-89-1 

Cyanamide 420-04-2 

Cyromazine 66215-27-8 

Denatonium saccharide 90823-38-4 

Etofenprox 80844-07-1 

Fenarimol 60168-88-9 

Fenoxaprop-p-ethyl 71283-80-2 

Fenoxycarb 72490-01-8 

Flumetsulam 98967-40-9 

Fomesafen 108731-70-0 

Fosetyl-Al (Aliette) 39148-24-8 

Glufosinate 77182-82-2 

Hexythiazox 78587-05-0 

Isoxaben 82558-50-7 

Lactofen 77501-63-4 
8

Chemical Name CAS Number 

Paclobutrazol 76738-62-0 

Phosalone 2310-17-0 

Profenofos 41198-08-7 

Propetamphos 31218-83-4 

Propionic acid, and salts 79-09-4 

Pyridate 55512-33-9 

Quinclorac 84087-01-4 

Quizalofop 100646-51-3 

Silica and silicates 

Soap salts 

Sodium tetrathiocarbonate 7345-69-9 

Sulfluramid 4151-50-2 

Sulfosate 81591-81-3 

Sulfur 

Temephos 3383-96-8 

Triflumizole 68694-11-1 

Trinexapac-ethyl 95266-40-3 

Urea, sulfate (1:1)