Synonyms: Phosphonothioicacid, methyl-, O-(4-bromo-2,5-dichlorophenyl) O-isopropyl ester (7CI,8CI);Phenol, 4-bromo-2,5-dichloro-, O-ester with O-isopropyl methylphosphonothioate;CELA K 43; K 43; K 43 (pesticide); O-(4-Bromo-2,5-dichlorophenyl) O-isopropylmethylphosphonothioate; OMS 989