18936-52-2 AI3-27235 BRN 2657073 Bayer 54203 ENT 27,235 O,O-Dimethyl phosphorothioate O-ester with 5-chlorosalicylonitrile Phosphorothioic acid, O,O-dimethyl-, O-ester with 5-chlorosalicylonitrile Phosphorothioic acid, O-(4-chloro-2-cyanophenyl) O,O-dimethyl ester Phosphorothioic acid, O-(4-chloro-2-cyanophenyl) O,O-dimethyl estter