4,4'-Dibromobiphenyl

4,4'-Dibromobiphenyl (CAS 92-86-4) is manufactured directly by Speranza Chemical Co., Ltd. to chemical-grade standards meeting ChP, USP, BP, EP, JP, IP, and Ph.Int. requirements. It is used to prepare 3,7-dibromodibenzothiophene-5-dioxide and 4,4'-dibromobiphenyl-3-sulfonic acid via chlorosulfonic acid, and is sold globally across North America, Central/South America, Europe, Australasia, Asia, the Middle East, and Africa, though samples are not currently offered.