α, α-DICHLORODIPHENYLMETHANEdichlorodiphenylmethaneDiphenyldichloromethane1,1-dichloro-1,1-diphenylmethaneα,α-dichlorodiphenylmethanediphenyl-dichloromethanebis-chlorodiphenylmethane1,1-dichlorodiphenylmethanebisphenyldichloromethaneα,α-Dichlorodiphenylmethaneα,α-二氯二苯甲烷Benzophenone dichloride二氯二苯甲酮DiphenyldichloromethaneDPM (halocarbon)DPM1,1'-(Dichloromethylene)bis[benzene]α,α-Dichlorodiphenylmethane NSC 37425