Synonyms: Phosphorothioicacid (H3PO3S), O,O-dimethyl O-4-(methylthio)-m-tolyl ester (6CI); Phosphorothioicacid, O,O-dimethyl O-[4-(methylthio)-m-tolyl] ester (8CI); Phosphorothioicacid, dimethyl [4-(methylthio)-m-tolyl] ester (7CI); m-Cresol, 4-(methylthio)-,O-ester with O,O-di-Me phosphorothioate (6CI); B 29493; BAY 29493; Baycid;Bayer 9007; Baytex; Dimethyl 4-methylthio-m-tolyl phosphorothioate; ENT 25540;Entex; Fenthion; Fenthion-methyl; Lebaycid; MPP; MPP (pesticide); Mercaptofos;Mercaptophos; O,O-Dimethyl O-(3-methyl-4-methylmercaptophenyl)phosphorothioate; O,O-Dimethyl O-(3-methyl-4-methylthiophenyl) thiophosphate;O,O-Dimethyl O-(4-methylthio-3-methylphenyl) phosphorothioate; O,O-DimethylO-4-(methylmercapto)-3-methylphenyl phosphorothioate; O,O-DimethylO-4-(methylmercapto)-3-methylphenyl thiophosphate; O,O-DimethylO-[3-methyl-4-(methylthio)phenyl] phosphorothioate; O,O-DimethylO-[4-(methylthio)-m-tolyl] phosphorothioate; O,O-DimethylO-[4-(methylthio)-m-tolyl] thiophosphate; OMS 2; Phenthion; Queletox; S 1752;Spotton; Sulfidophos; Talodex; Tiguvon