38090-84-5 BRN 1005690 O,O-Diethyl S-((5-methoxy-1,3,4-thiadiazol-2-yl)methyl) phosphorothioate Phosphorothioic acid, O,O-diethyl S-((5-methoxy-1,3,4-thiadiazol-2-yl)methyl) ester