Agent Name

Acethion

CAS Number

919-54-0

Formula

C8-H17-O4-P-S2

Major Category

Pesticides

Synonyms

Acethione; Acetic acid, ((diethoxyphosphinothioyl)thio)-, ethyl ester; Acetic acid, mercapto-, ethyl ester, S-ester with O,O-diethyl phosphorodithioate; Azethion; ENT 25650; Ethoxyphas; Ethoxyphos; Ethyl ((diethoxyphosphinothioyl)thio)acetate; Hercules 4580; O,O-Diethyl S-carboethoxymethyl dithiophosphate; O,O-Diethyl S-carboethoxymethyl phosphorodithioate; Phosphorodithioic acid, O,O-diethyl ester, S-ester with ethyl mercaptoacetate; Prothion; [ChemIDplus]

Category

Organophosphate Insecticides

Description

Liquid; [HSDB]

Sources/Uses

Used as an insecticide; [HSDB]

Comments

The average of two baseline respective cholinesterase activity determinations three days apart, with no exposures to enzyme inhibiting pesticides for at least 30 days, is recommended for each worker prior to exposure to cholinesterase inhibitors because of large inter-individual differences in published baseline values. To be established at least once a year. Removal from workplace exposures is recommended until the cholinesterase activity returns to within 20% of baseline. [TLVs and BEIs]

Exposure Assessment
BEI

Acetylcholinesterase activity in red blood cells = 70% of individual's baseline; Butylcholinesterase activity in serum or plasma = 60% of individual's baseline; Sample at end of shift; [TLVs and BEIs]

Vapor Pressure

0.000534 mm Hg

Adverse Effects
Other Poison

Organophosphate

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