| Identification | Back Directory | [Name]
Metasystox | [CAS]
867-27-6 | [Synonyms]
BAY-15203
ENT-18862
Metasystox
methyl systox
Demeton methyl
emeton-O-methyl
O-Methyldemeton
demeton-O-methyl
Methyl demeton-O
METHYLMERCAPTOPHOS
Demeton methyl Solution, 100ppm
Demeton methyl Solution, 1000ppm
2-(ethylthio)ethoxy-dimethoxy-thioxo-phosphorane
O-2-ethylthioethyl O,O-dimethyl phosphorothioate
O,O-DIMETHYLO-ETHYL-2-THIOETHYLETHYLTHIONOPHOSPHATE
Phosphorothioic acid O,O-dimethyl O-[2-(ethylthio)ethyl]
2-ethylsulfanylethoxy-dimethoxy-sulfanylidene-$l^{5}-phosphane
Phosphorothioic acid, O-[2-(ethylthio)ethyl] O,O-dimethyl ester
demeton-O-methyl (ISO) O-2-ethylthioethyl O,O-dimethyl phosphorothioate | [EINECS(EC#)]
212-758-1 | [Molecular Formula]
C6H15O3PS2 | [MOL File]
867-27-6.mol | [Molecular Weight]
230.285 |
| Chemical Properties | Back Directory | [Melting point ]
<25 °C | [Boiling point ]
bp0.15 74° | [density ]
d420 1.190 | [refractive index ]
nD20 1.5063 | [solubility ]
Chloroform (Slightly), Methanol (Slightly) | [form ]
Oil | [color ]
Colourless | [Henry's Law Constant]
3.2×100 mol/(m3Pa) at 25℃, Ebert et al. (2023) | [EPA Substance Registry System]
Demeton-O-methyl (867-27-6) |
| Safety Data | Back Directory | [Hazard Codes ]
T | [Risk Statements ]
25 | [Safety Statements ]
24-36/37-45 | [RIDADR ]
3018 | [HazardClass ]
6.1(b) | [PackingGroup ]
III | [Safety Profile]
Poison by ingestion,
skin contact, inhalation, and intravenous
routes. Experimental teratogenic and
reproductive effects. When heated to
decomposition it emits very toxic fumes of
POx and SOx. See also DEMETON-0 +
DEMETON-S and other DEMETON
entries. |
| Hazard Information | Back Directory | [Description]
Demeton-O-methyl is an organophosphate insecticide. Other than having a moderate aqueous solubility, very little data is available regarding its environmental fate. It is moderately toxic to honeybees and earthworms. Other ecotoxicity data is missing. Demeton-O-methyl is an acetylcholinesterase inhibitor and a neurotoxin. It is also an irritant. | [Uses]
Demeton Methyl is an organophosphorus pesticides. | [Production Methods]
Demeton-O-methyl is commercially produced through esterification of thiophosphoric acid derivatives with methanol. In industrial settings, demeton-O-methyl is synthesised by reacting O,O-dimethyl phosphorochloridothioate with 2-(methylthio)ethanol under controlled conditions. | [Mechanism of action]
Systemic with contact and stomach action. Acetylcholinesterase (AChE) inhibitor. | [Pesticide Type]
Insecticide; Acaricide |
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