Demeton-S-methyl

• CAT Number: R046838
• CAS Number: 919-86-8
• Molecular Formula: C6H15O3PS2
• Molecular Weight: 230.28
• Purity: ≥95%
• Synonyms: Phosphorothioic Acid S-[2-(Ethylthio)ethyl] O,O-Dimethyl Ester; Metaisoseptox; Metaisosystox; Metasystox 55; Metasystox I; Metasystox J; Methyl Demeton Thioester; Methyl Isosystox; Methylthionodemeton; Thiometon Oxon
• Storage: -20°C
• IUPAC Name: 1-dimethoxyphosphorylsulfanyl-2-ethylsulfanylethane
• InChI: InChI=1S/C6H15O3PS2/c1-4-11-5-6-12-10(7,8-2)9-3/h4-6H2,1-3H3
• InChIKey: WEBQKRLKWNIYKK-UHFFFAOYSA-N
• SMILES: CCSCCSP(=O)(OC)OC

Demeton-S-methyl(CAT: R046838) is an organophosphate insecticide and acaricide primarily used in agriculture to control pests on crops. It works by inhibiting the enzyme acetylcholinesterase, leading to the accumulation of acetylcholine in nerve synapses, which disrupts normal nerve function in insects, causing paralysis and death. Due to its mechanism of action, Demeton-S-methyl is considered highly toxic to insects, but it also poses significant risks to humans and other non-target organisms. Its use is regulated or banned in many countries due to concerns over its environmental persistence, toxicity, and potential health hazards. It has been replaced by safer and more environmentally friendly alternatives in many regions.