2720-19-6 AI3-27374 BRN 1884127 CELA K-41 ENT 27,374 K 41 K 41 (pesticide) NSC 404610 O-(4-Bromo-2,5-dichlorophenyl) O-methyl ethylphosphonothioate O-(4-Bromo-3,6-dichlorophenyl)-O-methyl ethylphosphonothionate Phenol 4-bromo-2,5-dichlorophenyl-, O-ester with O-methyl ethylphosphonothioate Phenol, 4-bromo-2,5-dichloro-, O-ester with O-methyl ethylphosphonothioate Phosphonothioic acid, ethyl-, O-(4-bromo-2,5-dichlorophenyl) O-methyl ester