1-(2,4-DICHLOROPHENYL) ETHANONE 1-(2,4-Dichlorophenyl)ethan-1-one 2',4'-Dichloroacetophenone 2234-16-4 Acetophenone, 2',4'-dichloro- (8CI) EINECS 218-780-8 Ethanone, 1-(2,4-dichlorophenyl)- NSC 33945 p-Chloro-2-chloroacetophenone