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Dimethoate

Dimethoate

IUPAC name	O,O-dimethyl S-[2-(methylamino)-2-oxoethyl] dithiophosphate
Other names	O,O-dimethyl S-methylcarbamoylmethyl phosphorodithioate Phosphorodithioic acid, O,O-Dimethyl S-(2-(methylamino)-2-oxoethylyl)ester
Identifiers
CAS number	60-51-5
SMILES	S=P(SCC(=O)NC)(OC)OC
Properties
Molecular formula	C₅H₁₂NO₃PS₂
Molar mass	229.28 g/mol
Appearance	Grey-white crystalline solid
Density	1.3 g/cm³, solid
Melting point	43-45°C (316-318 K)
Boiling point	117°C (390 K)at 0.01 kPa
Solubility in water	2.5 g/100 ml (?°C)
Hazards
MSDS	External MSDS
Main hazards	Highly toxic
Flash point	107°C
Related Compounds
Related organophosphates	malathion
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references

Dimethoate is a widely used organophosphate insecticide used to kill insects on contact. It was patented and introduced in the 1950s by American Cyanamid. Like other organophosphates, dimethoate is an anticholinesterase which disables cholinesterase, an enzyme essential for central nervous system function.