ent25685 fujithion isofenchlorfos o,o-dimethyl-s-p-chlorophenylphosphorothioate phosphorothioicacid,s-(p-chlorophenyl)o,o-dimethylester s-(p-chlorophenyl)o,o-dimethylphosphothioate s-p-chlorfenyl-o,o-dimethylesterkyselinythiofosforecne DMCP