4,4'-Dichlorobenzophenone 90-98-2 Benzophenone, 4,4'-dichloro- Bis(4-chlorophenyl) ketone DBP DCB DCBP Di(p-Chlorophenyl)ketone Methanone, bis(4-chlorophenyl)- NSC8787 Usaf do-4 WLN: GR DVR DG p,p'-Dichlorobenzophenone