37934-12-6 BRN 0995683 O,O-Diethyl S-((5-methyl-1,3,4-oxadiazol-2-yl)methyl) phosphorothioate Phosphorothioic acid, O,O-diethyl S-((5-methyl-1,3,4-oxadiazol-2-yl)methyl) ester