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Draft Second List of Chemicals for Tier 1 Screening

Highlights

This page presents an alphabetized list of the draft 134 chemicals that were considered for Tier 1 Screening. This list was published in a Federal Register Notice on November 17, 2010. The public should not presume the listing of a chemical or substance indicates it interferes with the endocrine systems of humans or other species simply because it has been listed for screening under the EDSP.  EPA believes that these chemicals or substances should be candidates, at least for screening purposes, under EDSP testing based only on their pesticide registration status and/or because such substances may occur in sources of drinking water to which a substantial population may be exposed. Download a printable version of the table (PDF) (5 pp, 53K, About PDF)

 

Chemical Name CAS Number SDWA PAI RR Schedule
1,1,1,2-Tetrachloroethane 630-20-6 X    
1,1,1-Trichloroethane 71-55-6 X    
1,1,2-Trichloroethane 79-00-5 X    
1,1-Dichloroethane 75-34-3 X    
1,1-Dichloroethylene 75-35-4 X    
1,2,3-Trichloropropane 96-18-4 X    
1,2,4-Trichlorobenzene 120-82-1 X    
1,2-Dibromo-3-chloropropane (DBCP) 96-12-8 X    
1,2-Dichloroethane 107-06-2 X    
1,2-Dichloropropane 78-87-5 X    
1,3-Dinitrobenzene 99-65-0 X    
1,4-Dioxane 123-91-1 X    
1-Butanol 71-36-3 X    
2,4,5-TP (Silvex) 93-72-1 X    
2-Methoxyethanol 109-86-4 X    
2-Propen-1-ol 107-18-6 X    
4,4'-Methylenedianiline 101-77-9 X    
Acetaldehyde 75-07-0 X    
Acetamide 60-35-5 X    
Acetochlor 34256-82-1 X X  
Acetochlor ethanesulfonic acid (ESA) 187022-11-3 X    
Acetochlor oxanilic acid (OA) 194992-44-4 X    
Acrolein 107-02-8 X X  
Acrylamide 79-06-1 X    
Alachlor 15972-60-8 X X  
Alachlor ethanesulfonic acid (ESA) 142363-53-9 X    
Alachlor oxanilic acid (OA) 171262-17-2 X    
alpha-Hexachlorocyclohexane 319-84-6 X    
Aniline 62-53-3 X    
Bensulide 741-58-2 X X FY 2008
Benzene 71-43-2 X    
Benzo(a)pyrene (PAHs) 50-32-8 X    
Benzyl chloride 100-44-7 X    
Butylated hydroxyanisole 25013-16-5 X    
Carbon tetrachloride 56-23-5 X    
Chlordane 57-74-9 X    
Chlorobenzene 108-90-7 X    
cis-1,2-Dichloroethylene 156-59-2 X    
Clethodim 99129-21-2 X X FY 2008
Clofentezine 74115-24-5   X FY 2007
Clomazone 81777-89-1   X FY 2007
Coumaphos 56-72-4   X FY 2008
Cumene hydroperoxide 80-15-9 X    
Cyanamide 420-04-2   X FY 2008
Cyromazine 66215-27-8   X FY 2007
Dalapon 75-99-0 X    
Denatonium saccharide 90823-38-4   X FY 2008
Di(2-ethylhexyl) adipate 103-23-1 X    
Dichloromethane 75-09-2 X    
Dicrotophos 141-66-2 X X FY 2008
Dimethipin 55290-64-7 X X  
Dinoseb 88-85-7 X    
Diuron 330-54-1 X X  
Endothall 145-73-3 X X  
Endrin 72-20-8 X    
Epichlorohydrin 106-89-8 X    
Erythromycin 114-07-8 X    
Ethylbenzene 100-41-4 X    
Ethylene dibromide 106-93-4 X    
Ethylene glycol 107-21-1 X    
Ethylene thiourea 96-45-7 X    
Ethylurethane 51-79-6 X    
Etofenprox 80844-07-1   X FY 2007
Fenamiphos 22224-92-6 X
FY 2008
Fenarimol 60168-88-9   X FY 2007
Fenoxaprop-P-ethyl 71283-80-2   X FY 2007
Fenoxycarb 72490-01-8   X FY 2007
Flumetsulam 98967-40-9   X FY 2008
Fomesafen sodium 108731-70-0   X FY 2007
Fosetyl-Al (Aliette) 39148-24-8   X FY 2008
Glufosinate ammonium 77182-82-2   X FY 2008
HCFC-22 75-45-6 X    
Heptachlor 76-44-8 X    
Heptachlor epoxide 1024-57-3 X    
Hexachlorobenzene 118-74-1 X    
Hexachlorocyclopentadiene 77-47-4 X    
Hexane 110-54-3 X    
Hexythiazox 78587-05-0   X FY 2007
Hydrazine 302-01-2 X    
Isoxaben 82558-50-7   X FY 2008
Lactofen 77501-63-4   X FY 2007
Lindane 58-89-9 X    
Methanol 67-56-1 X    
Methoxychlor 72-43-5 X    
Methyl tert-butyl ether 1634-04-4 X    
Metolachlor ethanesulfonic acid (ESA) 171118-09-5 X    
Metolachlor oxanilic acid (OA) 152019-73-3 X    
Molinate 2212-67-1 X
X
 
Nitrobenzene 98-95-3 X    
Nitroglycerin 55-63-0 X    
N-Methyl-2-pyrrolidone 872-50-4 X    
N-Nitrosodimethylamine (NDMA) 62-75-9 X    
n-Propylbenzene 103-65-1 X    
o-Dichlorobenzene 95-50-1 X    
o-Toluidine 95-53-4 X    
Oxirane, methyl- 75-56-9 X    
Oxydemeton-methyl 301-12-2 X X FY 2008
Oxyfluorfen 42874-03-3 X X  
Paclobutrazol 76738-62-0   X FY 2007
p-Dichlorobenzene 106-46-7 X X  
Pentachlorophenol 87-86-5 X X  
Perchlorate 14797-73-0 X    
Perfluorooctane sulfonic acid (PFOS) 1763-23-1 X    
Perfluorooctanoic acid (PFOA) 335-67-1 X    
Picloram 1918-02-1 X X  
Polychlorinated biphenyls 1336-36-3 X    
Profenofos 41198-08-7 X X FY 2008
Propetamphos 31218-83-4   X FY 2008
Propionic acid 79-09-4   X FY 2008
Pyridate 55512-33-9   X FY 2007
Quinclorac 84087-01-4   X FY 2008
Quinoline 91-22-5 X    
Quizalofop-P-ethyl 100646-51-3   X FY 2008
RDX 121-82-4 X    
sec-Butylbenzene 135-98-8 X    
Sodium tetrathiocarbonate 7345-69-9   X FY 2008
Styrene 100-42-5 X    
Sulfosate 81591-81-3   X FY 2007
Temephos 3383-96-8   X FY 2008
Terbufos 13071-79-9 X X FY 2008
Terbufos sulfone 56070-16-7 X    
Tetrachloroethylene 127-18-4 X    
Thiophanate-methyl 23564-05-8 X X  
Toluene diisocyanate 26471-62-5 X    
Toxaphene 8001-35-2 X    
trans-1,2-Dichloroethylene 156-60-5 X    
Trichloroethylene 79-01-6 X    
Triethylamine 121-44-8 X    
Triflumizole 68694-11-1   X FY 2007
Trinexapac-ethyl 95266-40-3   X FY 2008
Triphenyltin hydroxide (TPTH) 76-87-9 X X  
Vinclozolin 50471-44-8 X X  
Xylenes (total) 1330-20-7 X X  
Ziram 137-30-4 X X  

CAS Number = Chemical Abstract Services Registry Number
SDWA = Drinking water chemical based on CCL 3 List or chemicals with National Primary Drinking Water Regulations
PAI = Pesticide active ingredient (Current pesticide registration exists)
RR = OPP Registration Review date

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