Agent Name

Azinphos-ethyl

CAS Number

2642-71-9

Formula

C12-H16-N3-O3-P-S2

Major Category

Pesticides

Synonyms

3,4-Dihydro-4-oxo-3-benzotriazinylmethyl O,O-diethyl phosphorodithioate; 3-Diethoxyphosphinothioylthiomethyl-1,2,3-benzotriazin-4(3H)-one; 3-Diethyloxyphosphinothioylthiomethyl-1,2,3-benzotriazin-4(3H)-one; Athyl-gusathion; Azinfos-ethyl [Dutch]; Azinophos-ethyl; Azinos; Azinphos-aethyl [German]; Azinphos-ethyl; Azinphos-etile [Italian]; Azinugec E; BAY 16255; BAY 16259; Bayer 16259; Benzotriazine derivative of an ethyl dithiophosphate; Bionex; Cotnion-ethyl; Crysthion; ENT 22,014; Ethyl Gusathion; Ethyl azinphos; Ethyl guthion; Ethyl homolog of guthion; Gusathion; Gusathion A; Gusathion A-M; Gusathion H; Gusathion H and K; Gusathion K; Gusathion K forte; Gusation A; Gutex; Guthion (ethyl); O,O-Diaethyl-S-((4-oxo-3H-1,2,3-benzotriazin-3-yl)-methyl)-dithiophosphat [German]; O,O-Diaethyl-S-(4-oxobenzotriazin-3-methyl)-dithiophosphat [German]; O,O-Diethyl S-((4-oxo-1,2,3-benzotriazin-3(4H)-yl)methyl) phosphorodithioate (9CI); O,O-Diethyl S-(4-oxobenzotriazino-3-methyl)phosphorodithioate; O,O-Diethyl S-(4-oxobenzyltriazine-3-methyl) dithiophosphate; O,O-Diethyl phosphorodithioate S-ester with 3-(mercaptomethyl)-1,2,3-benzotriazin-4(3H)-one; O,O-Diethyl-S-((4-oxo-3H-1,2,3-benzotriazin-3-yl)-methyl)-dithio fosfaat [Dutch]; O,O-Diethyl-S-((4-oxo-3H-1,2,3-benzotriazin-3-yl)-methyl)-dithiofosfaat [Dutch]; O,O-Diethyl-S-(4-oxo-3H-1,2,3-benzotriazine-3-yl)-methyl-dithiophosphate; O,O-Dietil-S-((4-oxo-3H-1,2,3-benzotriazin-3-il)-metil)-ditiofosfato [Italian]; Phosphorodithioic acid, O,O-diethyl S-((4-oxo-1,2,3-benzotriazin-3(4H)-yl)methyl) ester; Phosphorodithioic acid, O,O-diethyl ester, S-ester with 3-(mercaptomethyl)-1,2,3-benzotriazin-4(3H)-one; R 1513; S-(3,4-Dihydro-4-oxo-1,2,3-benzotriazin-3-ylmethyl) O,O-diethyl phosphorodithioate; S-3,4-Dihydro-4-oxobenzo(d)(1.2.3)triazin-3-ylmethyl O,O-diethyl phosphorodithioate; Sepizin L; Triazotion [Russian]; [ChemIDplus] UN2783

Category

Organophosphate Insecticides

Description

Colorless solid; [HSDB] Colorless crystalline solid; [MSDSonline]

Sources/Uses

Used as a non-systemic insecticide and acaricide to protect fruits, vegetables, cotton, tobacco, ornamentals, other crops, and forestry; [HSDB]

Comments

Effects in high dose animal studies include depression of cholinesterase activity; [HSDB] Extremely toxic cholinesterase inhibitor that may cause death as a result of minor exposure to small amounts; [CAMEO] Toxic by ingestion, skin absorption, or inhalation; [Reference #1] May cause irritation; Effects in high dose animal studies include convulsions; [MSDSonline]

Restricted

No longer used or produced in the US or Canada (high toxicicity); [HSDB]

Reference Link

INCHEM PDS: Azinphos-ethyl - 1994

Exposure Assessment
BEI

Cholinesterase activity in red cells = 70% of individual's baseline, sample time discretionary; [ACGIH]

Vapor Pressure

2.4E-6 mm Hg

Lethal Concentration

LC50 (rat) = 390 mg/m3

Explanatory Notes

The Guide in the Emergency Response Guidebook is for "Organophosphorus pesticide, solid, toxic."

Adverse Effects
Other Poison

Organophosphate

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

Toxicity Information

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Chemical Information

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Related Information in HazMap
Diseases

Occupational diseases associated with exposure to this agent:

Processes

Industrial Processes with risk of exposure: