Environmental Health and Safety

Appendix IV
Environmental Protection Agency’s P List
(Acutely Hazardous Chemicals)

CAS Number Chemical Name
107-20-0 Acetaldehyde, chloro-
591-08-2 Acetamide, N-(aminothioxomethyl)-
640-19-7 Acetamide, 2-fluoro-
62-74-8 Acetic acid, fluoro-, sodium salt
591-08-2 1-Acetyl-2-thiourea
107-02-8 Acrolein
116-06-3 Aldicarb
309-00-2 Aldrin
107-18-6 Allyl alcohol
20859-73-8 Aluminum phosphide
2763-96-4 5-(Aminomethyl)-3-isoxazolol
504-24-5 4-Aminopyridine
131-74-8 Ammonium picrate
7803-55-6 Ammonium vanadate
506-61-6 Argentate (1-), bis(cyano-C)-, potassium
7778-39-4 Arsenic acid
1327-53-3 Arsenic oxide
1303-28-2 Arsenic pentoxide
1327-53-3 Arsenic trioxide
692-42-2 Arsine, diethyl-
696-28-6 Arsonous dichloride, phenyl-
151-56-4 Aziridine
75-55-8 Aziridine, 2-methyl-
542-62-1 Barium cyanide
106-47-8 Benzeneamine, 4-chloro-
100-01-6 Beneneamine, 4-nitro-
100-44-7 Benzene, (chloromethyl)-
51-43-4 1, 2-Benzenediol, 4-[1-hydroxy-2-(methylamino)ethyl]-
12-09-8 Benzeneethanamine, alpha, alpha-dimethyl-
108-98-5 Benzenethiol
81-81-2 2H-1-Benzopyran-2-one, 4-hydroxy-3-(3-oxo-1-phenylbutyl)-, and salts
100-44-7 Benzyl chloride
7440-41-7 Beryllium powder
598-31-2 Bromoacetone
357-57-3 Brucine
39196-18-4 2-Butanone, 3, 3-dimethyl-1-(methylthio)-O-[(methylamino)carbonyl]oxime
592-01-8 Calcium cyanide
75-15-1 Carbon disulfide
75-44-5 Carbonic dichloride
107-20-0 Chloroacetaldehyde
106-47-8 p-Chloroaniline
5344-82-1 1-(o-Chlorophenyl)thiourea
542-76-7 3-Chloropropionitrile
544-92-3 Copper cyanide
  Cyanide salts (soluble)
460-19-5 Cyanogen
506-77-4 Cyanogen chloride
131-89-5 2-Cyclohexyl-4, 6-dinitrophenol
542-88-1 Dichloromethyl ether
696-28-6 Dichlorophenylarsine
60-57-1 Dieldrin
692-42-2 Diethylarsine
311-45-5 Diethyl-p-nitrophenyl phosphate
297-97-2 O, O-Diethyl O-pyrazinyl phosphorothioate
55-91-4 Diisopropylfluorophosphate (DFP)
309-00-2 1, 4, 5, 8-Dimethanonaphthalene, 1, 2, 3, 4, 10, 10-hexa- chloro-1, 4, 4a, 5, 8, 8a, -hexahydro-, (1alpha, 4alpha, 4abeta, 5alpha, 8alpha, 8abeta)-
465-73-6 1, 4, 5, 8-Dimethanonaphtahalen, 1, 2, 3, 4, 10, 10, hexa- chloro-1, 4, 4a, 5, 8, 8a-hexahydro-, (1alpha, 4alpha, 4abeta, 5beta, 8beta, 8abeta)-
60-57-1 2, 7:3, 6-Dimethanonaphth[2, 3-b]oxirene, 3, 4, 5, 6, 9, 9-hexa- chloro- 1a, 2, 2a, 3, 6, 6a, 7, 7a-octahydro-, (1aalpha, 2beta, 2aalpha, 3beta, 6beta, 6aalpha, 7beta, 7aalpha)-
72-20-8 2, 7:3, 6-Dimethanonaphth[2, 3-b]oxirene, 3, 4, 5, 6, 9, 9-hexachloro- 1a, 2, 2a, 3, 6, 6a, 7, 7a-octahydro-, (1aalpha, 2beta, 2abeta, 3alpha, 6alpha, 6abeta, 7beta, 7aalpha)- and metabolites
60-51-5 Dimethoate
122-09-8 alpha, alpha-Dimethylphenethylamine
534-52-1 4, 6-Dinitro-o-cresol, and salts
51-28-5 2, 4-Dinitrophenol
88-85-7 Dinoseb
152-16-9 Diphosphoramide, octamethyl-
107-49-3 Diphosphoric acid, tetratethyl ester
298-04-4 Disulfoton
541-53-7 Dithiobiuret
115-29-7 Endosulfan
145-73-3 Endothall
72-20-8 Endrin and metabolites
51-43-4 Epinephrine
460-19-5 Ethanedinitrile
16752-77-5 Ethanimidothioic acid, N[[(methylamino)carbonyl] oxy]-, methyl ester
107-12-0 Ethyl cyanide
151-56-4 Ethyleneimine
52-85-7 Famphur
7782-41-4 Fluorine
640-19-7 Fluoroacetamide
62-74-8 Fluoroacetic acid, sodium salt
628-86-4 Fulminic acid, mercury(2+) salt
76-44-8 Heptachlor
757-58-4 Hexaethyl tetraphosphate
79-19-6 Hydrazinecarbothioamide
60-34-4 Hydrazine, methyl-
74-90-8 Hydrocyanic acid
74-90-8 Hydrogen cyanide
7803-51-2 Hydrogen phosphide
465-73-6 Isodrin
2763-96-4 3(2H)-Isoxazolone, 5-(aminomethyl)-
62-38-4 Mercury, (aceto-O)phenyl-
628-86-4 Mercury fulminate
62-75-9 Methanamine, N-methyl-N-nitroso-
624-83-9 Methane, isocyanato-
542-88-1 Methane, oxybis(chloro-
509-14-8 Methane, tetranitro-
75-70-7 Methanethiol, trichloro-
115-29-7 6, 9-Methano-2, 4, 3-benzodioxathiepin, 6, 7, 8, 9, 10, 10-hexacloro- 1, 5, 5a, 6, 9, 9a-hexahydro-, 3-oxide
76-44-8 4, 7-Methano-1H-indene, 1, 4, 5, 6, 7, 8, 8-heptachloro-3a, 4, 7, 7a-tetrahydro-
16752-77-5 Methomyl
60-34-4 Methyl hydrazine
624-83-9 Methyl isocyanate
75-86-5 2-Methyllactonitrile
298-00-0 Methyl parathion
86-88-4 alpha-Naphthylthiourea
13463-39-3 Nickel carbonyl
557-19-7 Nickel cyanide
54-11-5 Nicotine and salts
10102-43-9 Nitric oxide
100-01-6 p-Nitroaniline
10102-44-0 Nitrogen dioxide
10102-43-9 Nitrogen oxide
55-63-0 Nitroglycerine
62-75-9 N-Nitrosodimethylamine
4549-40-0 N-Nitrosomethylvinylamine
152-16-9 Octamethylpyrophosphoramide
20816-12-0 Osmium oxide
20816-12-0 Osmium tetroxide
145-73-3 7-Oxabicyclo(2, 2, 1)heptane-2, 3-dicarboxylic acid
56-38-2 Parathion
131-89-5 Phenol, 2-cyclohexyl-4, 6-dinitro-
51-28-5 Phenol, 2, 4-dinitro-
534-52-1 Phenol, 2-methyl-4, 6-dintro-, and salts
88-85-7 Phenol, 2-(1-methylpropyl)-4, 6-dinitro-
131-74-8 Phenol, 2, 4, 6-trinitro-, ammonium salt
62-38-4 Phenylmercury acetate
103-85-5 Phenylthiourea
298-02-2 Phorate
75-44-5 Phosgene
7803-51-2 Phosphine
311-45-5 Phosphoric acid, diethyl 4-nitrophenyl ester
298-04-4 Phosphorodithioic acid, O, O-diethyl S-[2-(ethylthio)ethyl] ester
298-02-2 Phosphorodithioic acid, O, O-diethyl S-[2-(ethylthio)methyl] ester
60-51-5 Phosphorodithioic acid, O, O-dimethyl S-[2-(methylamino)-2-oxoethyl]ester
55-91-4 Phosphorofluoridic acid, bis(1-methylethyl) ester
56-38-2 Phosphorothioic acid, O, O-diethyl O-(4-nitrophenyl) ester
297-97-2 Phosphorothioic acid, O, O-diethyl O-pyrazinyl ester
52-85-7 Phosphorothioic acid, O-[4-[(dimethylamino)sulfonyl]phenyl] O, O-dimethyl ester
298-00-0 Phosphorothioic acid, O, O, -dimethyl O-(4-nitrophenyl) ester
78-00-2 Plumbane, tetraethyl-
151-50-8 Potassium cyanide
506-61-6 Potassium silver cyanide
116-06-3 Propanal, 2-methyl-2-(methylthio)-O-[(methylamino)carbonyl] oxime
107-12-0 Propanenitrile
542-76-7 Propanenitrile, 3-chloro
75-86-5 Propanenitrile, 2-hydroxy-2-methyl
55-63-0 1, 2, 3-Propanetriol, trinitrate
598-31-2 2, Propanone, 1-bromo
107-19-7 Propargyl alcohol
107-02-8 2-Propenal
107-18-6 2-Propen-1-ol
75-55-8 1, 2-Propylenimine
107-19-7 2-Propyn-1-ol
504-24-5 4-Pyridinamine
54-11-5 Pyridine, 3-(1-methyl-2-pyrrolidinyl)- and salts
12039-52-0 Selenious acid, dithallium (1+) salt
630-10-4 Selenourea
506-64-9 Silver cyanide
26628-22-8 Sodium azide
143-33-9 Sodium cyanide
57-24-9 Strychnidin-10-one, and salts
357-57-3 Strychnidin-10-one, 2, 3-dimethoxy-
57-24-9 Strychnine, and salts
7446-18-6 Sulfuric acid, dithallium (1+) salt
3689-24-5 Tetraethyldithiopyrophosphate
78-00-2 Tetraethyl lead
107-49-3 Tetraethyl pyrophosphate
509-14-8 Tetranitromethane
757-58-4 Tetraphosphoric acid, hexaethyl ester
1314-32-5 Thallic oxide
12039-52-0 Thallium(I) selenite
7446-18-6 Thallium(I) sulfate
3689-24-5 Thiodiphosphoric acid, tetraethyl ester
39196-18-4 Thiofanox
541-53-7 Thioimidodicarbonic diamide
108-98-5 Thiophenol
79-19-6 Thiosemicarbazide
5344-82-1 Thiourea, (2-chlorphenyl)-
86-88-4 Thiourea, 1-naphthalenyl-
103-85-5 Thiourea, phenyl-
8001-35-2 Toxaphene
75-70-7 Trichloromethanethiol
7803-55-6 Vanadic acid, ammonium salt
1314-62-1 Vandium oxide
1314-62-1 Vanadium pentoxide
4549-40-0 Vinylamine, N-methyl-N-nitroso-
81-81-2 Warfarin, and salts, greater than 0.3%
557-21-1 Zinc cyanide
1314-84-7 Zinc phosphide