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Dimethoate Structural Formulae .V.1.svg
CAS number 60-51-5 YesY
PubChem 3082
ChemSpider 2973 YesY
UNII W6U08B045O YesY
KEGG C14326 YesY
ChEBI CHEBI:34714 YesY
Jmol-3D images Image 1
Molecular formula C5H12NO3PS2
Molar mass 229.26 g/mol
Appearance Grey-white crystalline solid
Density 1.3 g/cm3, solid
Melting point 43 to 45 °C (109 to 113 °F; 316 to 318 K)
Boiling point 117 °C (243 °F; 390 K) at 10 Pa
Solubility in water 2.5 g/100 ml
MSDS External MSDS
GHS pictograms GHS-pictogram-exclam.svg[1]
GHS hazard statements H302 - H312[1]
GHS precautionary statements P280[1]
Main hazards Highly toxic
Flash point 107 °C (225 °F; 380 K)
Related compounds
Related organophosphates malathion
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
 N (verify) (what is: YesY/N?)
Infobox 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 acetylcholinesterase inhibitor which disables cholinesterase, an enzyme essential for central nervous system function.


  1. ^ a b c Sigma-Aldrich Co., Dimethoate. Retrieved on 2013-07-20.

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