2,2,2',4'-Tetrachloroacetophenone 2,2-Dichloro-1-(2,4-dichlorophenyl)ethan-1-one 2,4-Dichlorophenacylidene chloride 2,4-Dichlorophenacylidene dichloride 2274-66-0 Acetophenone, 2,2,2',4'-tetrachloro- EINECS 218-890-6 Ethanone, 2,2-dichloro-1-(2,4-dichlorophenyl)- NSC 81222