Names | |
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Preferred IUPAC name
O,O-Dimethyl S-[2-(methylamino)-2-oxoethyl] phosphorodithioate | |
Other names
O,O-dimethyl S-methylcarbamoylmethyl phosphorodithioate
Phosphorodithioic acid, O,O-Dimethyl S-(2-(methylamino)-2-oxoethylyl)ester | |
Identifiers | |
3D model (JSmol)
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ChEBI | |
ChEMBL | |
ChemSpider | |
ECHA InfoCard | 100.000.437 |
KEGG | |
PubChem CID
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UNII | |
CompTox Dashboard (EPA)
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Properties | |
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 |
2.5 g/100 ml | |
Hazards | |
Occupational safety and health (OHS/OSH): | |
Main hazards
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Highly toxic |
GHS labelling: | |
[1] | |
H302, H312[1] | |
P280[1] | |
Flash point | 107 °C (225 °F; 380 K) |
Safety data sheet (SDS) | External MSDS |
Related compounds | |
Related organophosphates
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malathion |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Dimethoate is a widely used organophosphate insecticide and acaricide. 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. It acts both by contact and through ingestion. It is readily absorbed and distributed throughout plant tissues, and is degraded relatively rapidly.[2] One of the breakdown products of dimethoate is omethoate, a potent cholinesterase inhibitor, is ten times more toxic than its parent compound.[3]
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was invoked but never defined (see the help page).