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Agent Name Azinphos-methyl
Alternative Name Guthion
CAS Number 86-50-0
Formula C10-H12-N3-O3-P-S2
Major Category Pesticides
Synonyms 1,2,3-Benzotriazin-4(3H)-one, 3-(mercaptomethyl)-, O,O-dimethyl phosphorodithioate; 3-(Mercaptomethyl)-1,2,3-benzotriazin-4(3H)-one O,O-dimethyl phosphorodithioate S-ester; 3-Dimethoxyphosphinothioylthiomethyl-1,2,3-benzotriazin-4(3H)-one; Azinfos-methyl [Dutch]; Azinphos; Azinphos methyl; Azinphos-metile [Italian]; BAY 17147; BAY 9027; Bayer 17147; Bayer 9027; Benzotriazine derivative of a methyl dithiophosphate; Benzotriazinedithiophosphoric acid dimethoxy ester; Carfene; Cotneon; Cotnion; Cotnion methyl; Crysthion 2L; Crysthyon; Dimethyldithiophosphoric acid N-methylbenzazimide ester; EPA Shaughnessy #058001; Gusathion; Gusathion 25; Gusathion K; Gusathion M; Gusathion methyl; Gusathion-20; Guthion; Metazintox; Methyl guthion; Methylazinphos; Methylgusathion; Metiltriazotion; N-Methylbenzazimide, dimethyldithiophosphoric acid ester; O,O-Dimethyl S-(3,4-dihydro-4-keto-1,2,3-benzotriazinyl-3-methyl) dithiophosphate; O,O-Dimethyl S-(4-oxo-1,2,3-benzotriazino(3)-methyl) thiothionophosphate; O,O-Dimethyl S-(4-oxo-1,2,3-benzotriazino(3)-methyl)thiothionophosphate; O,O-Dimethyl S-(4-oxo-3H-1,2,3-benzotriazine-3-methyl)phosphorodithioate; O,O-Dimethyl S-(4-oxobenzotriazino-3-methyl)phosphorodithioate; O,O-Dimethyl S-4-oxo-1,2,3-benzotriazin-3(4H)-ylmethyl phosphorodithioate; O,O-Dimethyl phosphorodithioate S-ester with 3-(mercaptomethyl)-1,2,3-benzotriazin-4(3H)-one (8CI); O,O-Dimethyl-S-((4-oxo-3H-1,2,3-benzotriazin-3-yl)-methyl)-dithiofosfaat [Dutch]; O,O-Dimethyl-S-((4-oxo-3H-1,2,3-benzotriazin-3-yl)-methyl)-dithiophosphat [German]; O,O-Dimethyl-S-(1,2,3-benzotriazinyl-4-keto)methyl phosphorodithioate; O,O-Dimethyl-S-(4-oxobenzotriazin-3-methyl)-dithiophosphat [German]; O,O-Dimethyl-S-(benzaziminomethyl) dithiophosphate; O,O-Dimetil-S-((4-oxo-3H-1,2,3-benzotriazin-3-il)-metil)-ditiofosfato [Italian]; Phosphorodithioic acid, O,O-dimethyl S-((4-oxo-1,2,3-benzotriazin-3(4H)-yl)methyl) ester; Phosphorodithioic acid, O,O-dimethyl ester, S-ester with 3-(mercaptomethyl)-1,2,3-benzotriazin-4(3H)-one; R 1582; S-(3,4-Dihydro-4-oxo-benzo(alpha)(1,2,3)triazin-3-ylmethyl) O,O-dimethyl phosphorodithioate; S-3,4-Dihydro-4-oxobenzo(d)(1,2,3)triazin-3-ylmethyl O,O-dimethyl phosphorodithioate; [ChemIDplus]
Category Organophosphates
Description Colorless crystals or a brown, waxy solid. [insecticide]; [NIOSH]
Sources/Uses Used primarily to kill leaf feeding insects; [EXTOXNET]
Comments It is classified as "highly toxic"; the EPA reentry interval is 24 hours; [EXTOXNET]
Reference Link EXTOXNET PIP - AZINOPHOS-METHYL
Exposure Assessment
BEI Cholinesterase activity in red cells = 70% of individual's baseline, sample time discretionary; [ACGIH]
Skin Designation (ACGIH) Yes
TLV (ACGIH) 0.2 mg/m3, inhalable fraction and vapor
PEL (OSHA) 0.2 mg/m3
MAK 0.2 mg/m3, inhalable fraction
IDLH (NIOSH) 10 mg/m3
Vapor Pressure 8 x 10 -09 mm Hg
Adverse Effects
Other Poison Organophosphate
Links to Other NLM Databases
Health Studies Human Health Effects from Hazardous Substances Data Bank: AZINPHOSMETHYL  
Toxicity Information Search TOXNET
Chemical Information Search ChemIDplus
Biomedical References Search PubMed
Related Information in Haz-Map
Diseases Occupational diseases associated with exposure to this agent:
Processes Industrial Processes with risk of exposure:





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Last updated: January, 2009