1,1'-Biphenyl, 2,2'-dichloro- 13029-08-8 2,2'-Dichloro-1,1'-biphenyl 2,2'-Dichlorobiphenyl 2,2'-Dichlorodiphenyl Biphenyl, 2,2'-dichloro- NSC59902 WLN: CR BR BG o,o'-Dichlorobiphenyl