.alpha.,.alpha.-Dichloroacetophenone .omega.,.omega.-Dichloroacetophenone 2,2-Dichloroacetophenone 2648-61-5 Acetophenone, 2,2-dichloro- Ethanone, 2,2-dichloro-1-phenyl- NSC53617 Phenacylidene chloride WLN: GYGVR