(+-)-O-(1-(4-Chlorophenyl)-1H-pyrazol-4-yl) O-ethyl S-propyl phosphorothioate (RS)-(O-1-(4-Chlorophenyl)pyrazol-4-yl-O-ethyl-S-propylphosphorothioate) (IUPAC) 77458-01-6 Phosphorothioic acid, O-(1-(4-chlorophenyl)-1H-pyrazol-4-yl) O-ethyl S-propyl ester, (+-)-