7533-79-1 AI3-27409 BRN 1888973 C 8874 Ciba 8874 Ciba C 8874 O-(2,5-Dichloro-4-iodophenyl) O,O-diethyl phosphorothioate OMS 1210 Phosphorothioic acid, O-(2,5-dichloro-4-iodophenyl) O,O-diethyl ester