Agent Name

Oxydisulfoton

CAS Number

2497-07-6

Formula

C8-H19-O3-P-S3

Major Category

Pesticides

Synonyms

DEPD; Diston S; Disulfoton sulfoxide; Disyston S; Disyston sulfoxide; Disyston sulphoxide; Dithiophosphate de O,O-diethyle et de S-(2-ethylsulfinyl-ethyle) [French]; Ditiofosfato de O,O-dietilo y de S-(2-etilsulfinil)etilo [Spanish]; Ditiofosfato de O,O-dietiloe de S-(2-etilsulfiniletilo) [Portugese]; Ditiofosfato di O,O-dietile et di S-2-(etilsulfinil)-etile [Italian]; Ethylthiometon sulfoxide; L 16/184; O,O-Diethyl S-(2-(ethylsulfinyl)ethyl) phosphorodithioate; O,O-Diethyl S-2-((ethylsulfinyl)ethyl)phosphorodithioate; O,O-Diethyl-S-((ethylsulfinyl)ethyl)phosphorodithioate; O,O-Diethyl-S-(2-(ethylsulfinyl)-ethyl)dithiofosfaat [Netherlands]; O,O-Diethyl-S-2-ethylsulfinyl-ethyl-dithiophosphat (Deutsch); Oxidissulfotao [Portugese]; Oxidisulfoton [Spanish]; Oxydisulfoton [ISO]; Phosphorodithioic acid, O,O-diethyl S-(2-(ethylsulfinyl)ethyl) ester; S 309; [ChemIDplus]

Category

Organophosphate Insecticides

Description

Liquid; [CAMEO] Colorless liquid; [MSDSonline]

Sources/Uses

Used as systemic insecticide and acaricide; [HSDB]

Comments

A highly toxic cholinesterase inhibitor; [CAMEO] 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

3.65E-5 mm Hg

Adverse Effects
Other Poison

Organophosphate

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Chemical Information

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