Synonyms: Phosphorothioicacid, O,O-dimethyl ester, S-ester with 2-(mercaptomethyl)-5-methoxy-4H-pyran-4-one(6CI,7CI,8CI); 5-Methoxy-2-(dimethoxyphosphinylthiomethyl)pyrone-4; AC-18737;Endocid; Endocide; Endothion; Niagara 5767; S-(5-Methoxy-4-pyron-2-ylmethyl)O,O-dimethyl phosphorothioate; S-[(5-Methoxy-4-oxo-4H-pyran-2-yl)methyl] O,O-dimethylphosphorothioate