polybromobiphenyl 2,2',4,4',5,5'-hexabromobiphenyl 2,4,5,2',4',5'-hexabromobiphenyl CHEBI:134050 Reaxys:1991358 PMID:23721586 621.54133 2,2'4,4',5,5'-hexabromo-1,1'-biphenyl CAS:59080-40-9 PMID:19034893 chebi_ontology PBB 153 PBB153 627.582 C12H4Br6 2,2',4,4',5,5'-hexabromo[biphenyl] HMBBJSKXDBUNNT-UHFFFAOYSA-N InChI=1S/C12H4Br6/c13-7-3-11(17)9(15)1-5(7)6-2-10(16)12(18)4-8(6)14/h1-4H PMID:18255122 PMID:27474862 A polybromobiphenyl that is biphenyl in which the hydrogens at positions 2, 2', 4, 4', 5, and 5' have been replace by bromines. 0 PMID:15099731 PMID:27521000 PBB-153 C1(C2=C(C=C(C(=C2)Br)Br)Br)=C(C=C(C(=C1)Br)Br)Br brominated flame retardant