37934-14-8 BRN 1001105 O,O-Diethyl S-((5-ethyl-1,3,4-oxadiazol-2-yl)methyl) phosphorothioate Phosphorothioic acid, O,O-diethyl S-((5-ethyl-1,3,4-oxadiazol-2-yl)methyl) ester