4,4'-Difluorobenzhydryl chloride 98%1,1'-(Chloromethylene)bis(4-fluorobenzene)Bis(4-fluorophenyl)chloromethane4,4′-Difluorobenzhydryl chlorideChlorobis(4-fluorophenyl)methane4,4′-二氟二苯甲基氯氯代双(4-氟苯基)甲烷4,4'-(Chloromethylene)bis(fluorobenzene)4,4'-Difluorobenzhydryl chloride4,4'-二氟二苯基氯甲烷Chlorobis(4-fluorophenyl)methane