Environmental Health & Safety
Hazardous Materials / Wastes
Dangerous Waste List
The following list includes all listed dangerous wastes, other than Acutely Hazardous Wastes, according to the February 1998 Washington State Dangerous Waste Regulations.
NOTE: These wastes can be accumulated to a maximum of 55 gallons in a satellite accumulation area. At the time the maximum allowable volume has been reached, the material must be moved to a 90-day accumulation area within 3 days.
Discarded Chemical Products List
(WAC 173-303-9903) “U – listed” Chemical Products
Hazardous Waste Number | Substance |
---|---|
U394 | A2213 |
U001 | Acetaldehyde |
U034 | Acetaldehyde, trichloro- |
U187 | Acetamide, N-(4-ethoxyphenyl)- |
U005 | Acetamide, N-9H-fluoren-2-yl- |
U112 | Acetic acid, ethyl ester |
U144 | Acetic acid, lead salt |
U214 | Acetic acid, thallium (I) salt |
See F027 | Acetic acid, (2,4,5-trichlorophenoxy)- |
U002 | Acetone |
U003 | Acetonitrile |
U004 | Acetophenone |
U005 | 2-Acetylaminofluorine |
U006 | Acetyl chloride |
U007 | Acrylamide |
U008 | Acrylic Acid |
U009 | Acrylonitrile |
U011 | Amitrole |
U012 | Aniline |
U136 | Arsinic acid, dimethyl |
U014 | Auramine |
U015 | Azaserine |
U010 | Azirino(2',3':3,4)pyrrolo(1,2a)indole-4,7-dione, 6-amino-8[((aminocarbonyl)oxy) methyl] -1,1a,2,8,8a,8b-hexahydro-8a-methoxy-5-methyl |
U280 | Barban |
U278 | Bendiocarb |
U364 | Bendiocarb phenol |
U271 | Benomyl |
U157 | Benz[j]aceanthrylene, 1,2-dihydro-3-methyl- |
U016 | Benz(c)acridine |
U017 | Benzal chloride |
U192 | Benzamide, 3,5-Dichloro-N-(1,1-dimethyl-2-propynyl) |
U018 | Benz[a]anthracene |
U094 | Benzanthracene, 7,12-dimethyl- |
U012 | Benzeneamine |
U014 | Benzenamine, 4,4-carbonimidoylbis(N,N-dimethyl- |
U049 | Benzeneamine, 4-chloro-2-methyl, hydrochloride |
U093 | Benzeneamine, N,N-dimethyl-4-(pheynlazo)- |
U328 | Benzenamine, 2-methyl |
U353 | Benzenamine, 4-methyl |
U158 | Benzeneamine, 4,4-methylenebis(2-chloro- |
U222 | Benzenamine, 2-methyl-, hydrochloride |
U181 | Benzenamine, 2-methyl-5-nitro- |
U019 | Benzene |
U038 | Benzeneacetic acid, 4-chloro-alpha-(4-chlorophenyl) -alpha-hydroxy, ethyl ester |
U030 | Benzene, 1-bromo-4-phenoxy |
U035 | Benzenebutanoic acid, 4-[bis(2-chloroethyl)amino]- |
U037 | Benzene, chloro- |
U221 | Benzenediamine, ar-methyl- |
U028 | 1,2-Benzenedicarboxylic acid, [bis(2-ethyl-hexyl) ester |
U069 | 1,2-Benzenedicarboxylic acid, dibutyl ester |
U088 | 1,2-Benzenedicarboxylic acid, diethyl ester |
U102 | 1,2-Benzenedicarboxylic acid, dimethyl ester |
U107 | 1,2-Benzenedicarboxylic acid, di-N-octyl ester |
U070 | Benzene, 1,2-dichloro- |
U071 | Benzene, 1,3-dichloro- |
U072 | Benzene, 1,4-dichloro- |
U060 | Benzene, 1,1'-(2,2-dichloroethylidene)bis[4-chloro- |
U223 | Benzene, 1,3-diisocyanatomethyl- |
U239 | Benzene, dimethyl- |
U017 | Benzene, (dichloromethyl)- |
U201 | 1,3-Benzenediol |
U127 | Benzene, hexachloro- |
U056 | Benzene, hexahydro- |
U220 | Benzene, methyl- |
U105 | Benzene, 1-methyl-2,4-dinitro |
U106 | Benzene, 2-methyl-1,3-dinitro |
U055 | Benzene, (1-methylethyl)- |
U169 | Benzene, nitro- |
U183 | Benzene, pentachloro- |
U185 | Benzene, pentachloronitro- |
U020 | Benzenesulfonic acid chloride |
U020 | Benzenesulfonyl chloride |
U207 | Benzene, 1,2,4,5-tetrachloro- |
U061 | Benzene, 1,1'-(2,2,2-trichloroethylidene)bis[4-chloro- |
U247 | Benzene, 1,1'-(2,2,2-trichloroethylidene)bis[4-methoxy- |
U023 | Benzene, (trichloromethyl)- |
U234 | Benzene, 1,3,5-trinitro- |
U021 | Benzidine |
U202 | 1,2-Benzisothiazilin-3(2H)-one, 1,1-dioxide, and salts |
U278 | 1,3-Benzodioxol-4-ol, 2,2-dimethyl-, methyl carbamate |
U364 | 1,3-Benzodioxol-4-ol, 2,2-dimethyl- |
U203 | 1,3-Benzodioxole, 5-(2-propenyl) |
U141 | 1,3-Benzodioxole, 5-(1-propenyl) |
U367 | 7-Benzofuranol, 2,3-dihydro-2,2-dimethyl |
U090 | 1,3-Benzodioxole, 5 propyl) |
U064 | Benzo(rst)pentaphene |
U248 | 2H-1-Benzopyran-2-one, 4-hydroxy-3-(3-oxo-1-phenyl-butyl)- , & salts, when present at concentrations of 0.3% or less |
U022 | Benzo(a)pyrene |
U197 | p-Benzoquinone |
U023 | Benzotrichloride |
U085 | 2,2'-Bioxirane |
U021 | (1,1'-Biphenyl)-4,4'-diamine |
U073 | (1,1'-Biphenyl)-4,4'-diamine, 3,3'-dichloro- |
U091 | (1,1'-Biphenyl)-4-'-diamine, 3,3'-dimethoxy- |
U095 | (1,1'-Biphenyl)-4,4'-diamine, 3,3'-dimethyl- |
U225 | Bromoform |
U030 | 4-Bromophenyl phenyl ether |
U128 | 1,3-Butadiene, 1,1,2,3,4,4-hexachloro- |
U172 | 1-Butanamine, N-butyl-N-nitroso- |
U031 | 1-Butanol |
U159 | 2-Butanone |
U160 | 2-Butanone peroxide |
U053 | 2-Butenal |
U074 | 2-Butene, 1,4-dichloro- |
U143 | 2-Butenoic acid, 2-methyl-, 7-[[2,3-dihydroxy-2-(1-methoxyethyl)-3-methyl- 1-oxobutoxy]methyl]-2, 3, 5, 7a-tetrahydro-1H-pyrrolizin-1-yl ester, [1S-[1alpha(Z),7(2S*,3R*),7aalpha]]- |
U031 | N-Butyl alcohol |
U136 | Cacodylic acid |
U032 | Calcium chromate |
U372 | Carbamic acid, 1H-benzimidazol-2-yl, methyl ester |
Carbamic acid, [1-[(butylamino) carbonyl]-1H-benzimidazol-2-yl]-, methyl ester | |
U280 | Carbamic acid, (3-chlorophenyl)-, 4-chloro-2-butynyl ester |
U238 | Carbamic acid, ethyl ester |
U178 | Carbamic acid, methylnitroso-, ethyl ester |
U373 | Carbamic acid, phenyl-, 1-methylethyl ester |
U409 | Carbamic acid, [1,2-phenylenebis(iminocarbonothioyl)]bis-, dimethyl ester |
U097 | Carbamic chloride, dimethyl |
U389 | Carbamothioic acid, bis(1-methylethyl)-, S-(2,3,3-trichloro-2-propenyl) ester |
U387 | Carbamothioic acid, dipropyl, S-(phenylmethyl) ester |
U114 | Carbamodithioic acid, 1,2-ethanediylbis-, salts & esters |
U062 | Carbamothioic acid, bis(1-methylethyl)-, S-(2,3-dichloro-2-propenyl) ester |
U279 | Carbaryl. |
U372 | Carbendazim |
U367 | Carbofuran phenol |
U215 | Carbonic acid, dithallium (I) salt |
U033 | Carbonic difluoride |
U156 | Carbonochloridic acid, methyl ester |
U033 | Carbon oxyfluoride |
U211 | Carbon tetrachloride |
U034 | Chloral |
U035 | Chlorambucil |
U036 | Chlordane, alpha and gamma isomers |
U026 | Chlornaphazine |
U037 | Chlorobenzene |
U038 | Chlorobenzilate |
U039 | p-Chloro-m-cresol |
U042 | 2-Chloroethyl vinyl ether |
U044 | Chloroform |
U046 | Chloromethyl methyl ether |
U047 | beta-Chloronaphthalene |
U048 | o-Chlorophenol |
U049 | 4-Chloro-o-toluidine, hydrochloride |
U032 | Chromic acid, calcium salt |
U050 | Chrysene |
U051 | Creosote |
U052 | Cresol (cresylic acid) |
U053 | Crotonaldehyde |
U055 | Cumene |
U246 | Cyanogen bromide |
U197 | 2,5-Cyclohexadiene-1,4-dione |
U056 | Cyclohexane |
U129 | Cyclohexane, 1,2,3,4,5,6-hexachloro-, (1alpha,2alpha,3beta,4alpha,5alpha,6beta) |
U057 | Cyclohexanone |
U130 | 1,3-Cyclopentadiene, 1,2,3,4,5,5-hexachloro- |
U058 | Cyclophosphamide |
U240 | 2,4-D, salts and esters |
U059 | Daunomycin |
U060 | DDD |
U061 | DDT |
U062 | Diallate |
U063 | Dibenz[a,h]anthracene |
U064 | Dibenzo[a,i]pyrene |
U066 | 1,2-Dibromo-3-chloropropane |
U069 | Dibutyl phthalate |
U070 | o-Dichlorobenzene |
U071 | m-Dichlorobenzene |
U072 | p-Dichlorobenzene |
U073 | 3,3'-Dichlorobenzidine |
U074 | 1,4-Dichloro-2-butene |
U075 | Dichlorodifluoromethane |
U078 | 1,1-Dichloroethylene |
U079 | 1,2-Dichloroethylene |
U025 | Dichloroethyl ether |
U027 | Dichloroisopropyl ether |
U024 | Dichloromethoxy ethane |
U081 | 2,4-Dichlorophenol |
U082 | 2,6-Dichlorophenol |
U084 | 1,3-Dichloropropene |
U085 | 1,2:3,4-Diepoxybutane |
U108 | 1,4-Diethyleneoxide |
U028 | Diethylhexyl phthalate |
U395 | Diethylene glycol, dicarbamate |
U086 | N,N-Diethylhydrazine |
U087 | O,O-Diethyl-S-methyl-dithiophosphate |
U088 | Diethyl phthalate |
U089 | Diethylstilbestrol |
U090 | Dihydrosafrole |
U091 | 3,3'-Dimethoxybenzidine |
U092 | Dimethylamine |
U093 | Dimethylaminoazobenzene |
U094 | 7,12-Dimethylbenz[a]anthracene |
U095 | 3,3'-Dimethylbenzidine |
U096 | alpha, alpha-Dimethylbenzylhydroperoxide |
U097 | Dimethylcarbamoyl chloride |
U098 | 1,1-Dimethylhydrazine |
U099 | 1,2-Dimethylhydrazine |
U101 | 2,4-Dimethylphenol |
U102 | Dimethyl phthalate |
U103 | Dimethyl sulfate |
U105 | 2,4-Dinitrotoluene |
U106 | 2,6-Dinitrotoluene |
U107 | Di-N-octyl phthalate |
U108 | 1,4-Dioxane |
U109 | 1,2-Diphenylhydrazine |
U110 | Dipropylamine |
U111 | Di-N-propylnitrosamine |
U041 | Epichlorohydrin |
U404 | Ethanamine, N,N-diethyl- |
U001 | Ethanal |
1,2-Ethanediamine, N,N-dimethyl-N¢-2-pyridinyl-N¢- (2-thienylmethyl) | |
U174 | Ethanamine, N-ethyl-N-nitroso- |
U067 | Ethane, 1,2-dibromo- |
U076 | Ethane, 1,1-dichloro- |
U077 | Ethane, 1,2-dichloro- |
U131 | Ethane, hexachloro- |
U024 | Ethane, 1,1'-[methylenebis(oxy)]bis[2-chloro- |
U117 | Ethane, 1,1'-oxybis- |
U025 | Ethane, 1,1'-oxybis[2-chloro- |
U184 | Ethane, pentachloro- |
U208 | Ethane, 1,1,1,2-tetrachloro- |
U209 | Ethane, 1,1,2,2-tetrachloro- |
U218 | Ethanethioamide |
U226 | Ethane, 1,1,1-trichloro- |
U227 | Ethane, 1,1,2-trichloro- |
U410 | Ethanimidothioic acid, N,N'- [thiobis[(methylimino)carbonyloxy]]bis-, dimethyl ester |
U394 | Ethanimidothioic acid, 2-(dimethylamino)-N-hydroxy-2-oxo-, methyl ester. |
U359 | Ethanol, 2-ethoxy- |
U173 | Ethanol, 2,2-(nitrosoimino)bis- |
U395 | Ethanol, 2,2¢-oxybis-, dicarbamate. |
U004 | Ethanone, 1-phenyl- |
U043 | Ethene, chloro- |
U042 | Ethene, 2-chloroethoxy- |
U078 | Ethene, 1,1-dichloro- |
U079 | Ethene, 1,2-dichloro- |
U210 | Ethene, tetrachloro- |
U228 | Ethene, trichloro |
U112 | Ethyl acetate |
U113 | Ethyl acrylate |
U238 | Ethyl carbamate (urethan) |
U117 | Ethyl ether |
U067 | Ethylene dibromide |
U077 | Ethylene dichloride |
U359 | Ethylene glycol monoethyl ether |
U115 | Ethylene oxide |
U116 | Ethylene thiourea |
U118 | Ethyl methacrylate |
U119 | Ethyl methanesulfonate |
U114 | Ethylenebis(dithiocarbamic acid), salts and esters |
U120 | Fluoranthene |
U122 | Formaldehyde |
U123 | Formic Acid |
U124 | Furan |
U125 | 2-Furancarboxaldehyde |
U147 | 2,5-Furandione |
U213 | Furan, tetrahydro- |
U125 | Furfural |
U124 | Furfuran |
U206 | D-Glucopyranose, 2-deoxy-2(3- methyl-3-nitrosoureido)- |
U126 | Glycidylaldehyde |
U163 | Guanidine, N-methyl-N-nitro-N-nitroso |
U127 | Hexachlorobenzene |
U128 | Hexachlorobutadiene |
U130 | Hexachlorocyclopentadiene |
U131 | Hexachloroethane |
U132 | Hexachlorophene |
U243 | Hexachloropropene |
U133 | Hydrazine |
U086 | Hydrazine, 1,2-diethyl- |
U098 | Hydrazine, 1,1-dimethyl- |
U099 | Hydrazine, 1,2-dimethyl- |
U109 | Hydrazine, 1,2-diphenyl- |
U134 | Hydrofluoric acid |
U134 | Hydrogen fluoride |
U135 | Hydrogen sulfide |
U096 | Hydroperoxide, 1-methyl-1-phenylethyl- |
U116 | 2-Imidazolidinethione |
U137 | Indeno[1,2,3-cd]pyrene |
U190 | 1,3-Isobenzofurandione |
U140 | Isobutyl alcohol |
U141 | Isosafrole |
U142 | Kepone |
U143 | Lasiocarpine |
U144 | Lead acetate |
U145 | Lead phosphate |
U146 | Lead subacetate |
U129 | Lindane |
U163 | MNNG |
U147 | Maleic anhydride |
U148 | Maleic hydrazide |
U149 | Malonitrile |
U150 | Melphalan |
U151 | Mercury |
U152 | Methacrylonitrile |
U092 | Methanamine, N-methyl |
U029 | Methane, bromo- |
U045 | Methane, chloro- |
U046 | Methane, chloromethoxy- |
U068 | Methane, dibromo- |
U080 | Methane, dichloro- |
U075 | Methane, dichlorodifluoro- |
U138 | Methane, iodo- |
U119 | Methanesulfonic acid, ethyl ester |
U211 | Methane, tetrachloro- |
U153 | Methanethiol |
U225 | Methane, tribromo- |
U044 | Methane, trichloro- |
U121 | Methane, trichlorofluoro- |
U211 | Methane, trichlorofluoro- |
U036 | 4,7-Methanoindene, 1, 2, 3, 4, 5, 6, 7, 8, 8-octachloro-3a,4,7,7a-tetrahydro- |
U154 | Methanol |
U155 | Methapyrilene |
1,3,4-Metheno-2H-cyclobuta[cd]pentalen-2-one, 1, 1a, 3, 3a, 4, 5, 5, 5a, 5b, 6-decachlorooctahydro-U247 | |
U247 | Methoxychlor |
U154 | Methyl alcohol |
U029 | Methyl bromide |
U186 | 1-Methylbutadiene |
U045 | Methyl chloride |
U156 | Methyl chlorocarbonate |
U226 | Methyl chloroform |
U157 | 3-Methylcholanthrene |
U158 | 4,4'-Methylenebis(2-chloroaniline) |
U068 | Methylene bromide |
U080 | Methylene chloride |
U159 | Methyl ethyl ketone |
U160 | Methyl ethyl ketone peroxide |
U138 | Methyl iodide |
U161 | Methyl isobutyl ketone |
U162 | Methyl methacrylate |
U161 | 4-Methyl-2-pentanone |
U164 | Methylthiouracil |
U010 | Mitomycin C |
U059 | 5,12-Naphthacenedione, (8S-cis)- 8-acetyl-10-[(3-amino-2, 3, 4-trideoxy-alpha- L-lyxo-hexopyranosyl) olyl]-7, 8, 9, 10-tetrahydro-6, 8, 11-trihydroxy-1-methoxy- |
U167 | 1-Naphthalenamine |
U168 | 2-Naphthalenamine |
U026 | Naphthalenamine, N,N-bis(2-chloroethyl)- |
U165 | Naphthalene |
U047 | Naphthalene, 2-chloro |
U166 | 1,4-Naphthalenedione |
U236 | 2,7-Naphthalenedisulfonic acid, 3,3'-[(3,3'-dimethyl- (1,1'-biphenyl)-4,4'-diyl)]- bis(azo)bis(5-amino-4-hydroxy)-, tetrasodium salt |
U279 | 1-Naphthalenol, methylcarbamate |
U166 | 1,4-Naphthoquinone |
U167 | alpha-Naphthylamine |
U168 | beta-Naphthylamine |
U169 | Nitrobenzene |
U170 | p-Nitrophenol |
U171 | 2-Nitropropane |
U172 | N-Nitrosodi-N-butylamine |
U173 | N-Nitrosodiethanolamine |
U174 | N-Nitrosodiethylamine |
U176 | N-Nitroso-N-ethylurea |
U177 | N-Nitroso-N-methylurea |
U178 | N-Nitroso-N-methylurethane |
U179 | N-Nitrosopiperidine |
U180 | N-Nitrosopyrrolidine |
U181 | 5-Nitro-o-toluidine |
U193 | 1,2-Oxathiolane, 2,2-dioxide |
U058 | 2H-1,3,2-Oxazaphosphorine, 2-[bis(2-chloroethyl)amino]tetrahydro-, 2-oxide |
U115 | Oxirane |
U126 | Oxirane carboxyaldehyde |
U041 | Oxirane, (chloromethyl)- |
U182 | Paraldehyde |
U183 | Pentachlorobenzene |
U184 | Pentachloroethane |
U185 | Pentachloronitrobenzene |
See F027 | Pentachlorophenol |
U186 | 1,3-Pentadiene |
U161 | Pentanol, 4-methyl |
U187 | Phenacetin |
U188 | Phenol |
U048 | Phenol, 2-chloro- |
U039 | Phenol, 4-chloro-3-methyl |
U081 | Phenol, 2,4-dichloro- |
U082 | Phenol, 2,6-dichloro- |
U052 | Phenol, methyl |
U132 | Phenol, 2,2'-methylenebis[3,4,6-trichloro- |
U411 | Phenol, 2-(1-methylethoxy)-, methylcarbamate |
U101 | Phenol, 2,4-dimethyl- |
U170 | Phenol, 4-nitro- |
See F027 | Phenol, pentachloro- |
See F027 | Phenol, 2,3,4,6-tetrachloro- |
See F027 | Phenol, 2,4,5-trichloro- |
See F027 | Phenol, 2,4,6-trichloro- |
U150 | L-Phenylalanine, 4-[bis(2-chloroethyl)amino]- |
U145 | Phosphoric acid, lead salt |
U087 | Phosphorodithioic acid, O,O-diethyl-, S-methyl ester |
U189 | Phosphorus sulfide |
U190 | Phthalic anhydride |
U191 | 2-Picoline |
U179 | Piperidine, 1-nitroso |
U192 | Pronamide |
U194 | 1-Propanamine |
U111 | 1-Propanamine, N-nitroso-N-propyl |
U110 | 1-Propanamine, N-propyl- |
U066 | Propane, 1,2-dibromo-3-chloro- |
U149 | Propanedinitrile |
U171 | Propane, 2-nitro- |
U027 | Propane. 2,2'-oxybis[2-chloro- |
U193 | 1,3-Propane sultone |
See F027 | Propanoic acid, 2-(2,4,5-trichlorophenoxy) |
U235 | 1-Propanol, 2,3-dibromo, phosphate (3:1) |
U140 | 1-Propanol, 2-methyl- |
U002 | 2-Propanone |
U007 | 2-Propenamide |
U084 | Propene, 1,3-dichloro- |
U243 | 1-Propene, 1,1,2,3,3-hexachloro- |
U009 | 2-Propenenitrile |
U152 | 2-Propenenitrile, 2-methyl- |
U008 | 2-Propenoic acid |
U113 | 2-Propenoic acid, ethyl ester |
U118 | 2-Propenoic acid, 2-methyl-, ethyl ester |
U162 | 2-Propenoic acid, 2-methyl-, methyl ester |
U373 | Propham |
U411 | Propoxur |
U387 | Prosulfocarb |
U194 | N-Propylamine |
U083 | Propylene dichloride |
U196 | Pyridine |
U191 | Pyridine, 2-methyl |
U179 | Pyridine, nitroso- |
U164 | 4(1H)-Pyrimidinone, 2,3-dihydro-6-methyl-2-thioxo- |
U180 | Pyrrolidine, 1-nitroso |
U200 | Reserpine |
U201 | Resorcinol |
U202 | Saccharin and salts |
U203 | Safrole |
U204 | Selenious acid |
U204 | Selenium dioxide |
U205 | Selenium sulfide |
U015 | L-Serine, diazoacetate (ester) |
See F027 | Silvex |
U206 | Streptozotocin |
U103 | Sulfuric acid, dimethyl ester |
U189 | Sulfur phosphide |
See F027 | 2,4,5-T |
U207 | 1,2,4,5-Tetrachlorobenzene |
U208 | 1,1,1,2-Tetrachloroethane |
U209 | 1,1,2,2-Tetrachloroethane |
U210 | Tetrachloroethylene |
See F027 | 2,3,4,6-Tetrachlorophenol |
U213 | Tetrahydrofuran |
U214 | Thallium (I) acetate |
U215 | Thallium (I) carbonate |
U216 | Thallium (I) chloride |
U217 | Thallium (I) nitrate |
U218 | Thioacetamide |
U410 | Thiodicarb |
U153 | Thiomethanol |
U244 | Thioperoxydicarbonic diamide, tetramethyl |
U409 | Thiophanate, methyl |
U219 | Thiourea |
U244 | Thiram |
U220 | Toluene |
U221 | Toluenediamine |
U223 | Toluene diisocyanate |
U328 | o-Toluidine |
U353 | p-Toluidine |
U222 | o-Toluidine hydrochloride |
U389 | Triallate |
U011 | 1H-1,2,4-Triazol-3-amine |
U227 | 1,1,2-Trichloroethane |
U228 | Trichloroethylene |
U121 | Trichloromonofluoromethane |
See F027 | 2,4,5-Trichlorophenol |
See F027 | 2,4,6-Trichlorophenol |
U404 | Triethylamine |
U234 | 1,3,5-Trinitrobenzene |
U182 | 1,3,5-Trioxane, 2,4,6-trimethyl- |
U235 | Tris(2,3-disbromopropyl) phosphate |
U236 | Trypan blue |
U237 | Uracil mustard |
U176 | Urea, N-ethyl-N-nitroso |
U177 | Urea, N-methyl-N-nitroso |
U043 | Vinyl chloride |
U248 | Warfarin & salts, when present at concentrations of 0.3% or less |
U239 | Xylene |
U200 | Yohimban-16-carboxylic acid, 11, 17-dimethoxy-18-[3, 4, 5-trimethoxybenzoyl) oxy]-, methyl ester |
U249 | Zinc phosphide, when present at concentrations of 10% or less |