Biphenyl,2,2'-dichloro- (6CI,7CI,8CI); 2,2'-DCBP; 2,2'-Dichloro-1,1'-biphenyl;2,2'-Dichlorobiphenyl; 2,2'-Dichlorodiphenyl; NSC 59902; PCB 4;o,o'-Dichlorobiphenyl
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