heme b (7,12-diethenyl-3,8,13,17-tetramethylporphyrin-2,18-dipropanoato)iron (protoporphyrinato)iron 616.177 616.48700 A metalloprotoporphyrin in which the four pyrrole nitrogens of the protoporphyrin moiety are coordinated to iron. C34H32FeN4O4 CAS:14875-96-8 CC1=C(CCC(O)=O)C2=[N]3C1=Cc1c(C)c(C=C)c4C=C5C(C)=C(C=C)C6=[N]5[Fe]3(n14)n1c(=C6)c(C)c(CCC(O)=O)c1=C2 CHEBI:26355 COMe:MOL000013 ECMDB:ECMDB03178 Haem Heme B InChI=1S/C34H34N4O4.Fe/c1-7-21-17(3)25-13-26-19(5)23(9-11-33(39)40)31(37-26)16-32-24(10-12-34(41)42)20(6)28(38-32)15-30-22(8-2)18(4)27(36-30)14-29(21)35-25;/h7-8,13-16H,1-2,9-12H2,3-6H3,(H4,35,36,37,38,39,40,41,42);/q;+2/p-2/b25-13-,26-13-,27-14-,28-15-,29-14-,30-15-,31-16-,32-16-; KABFMIBPWCXCRK-RGGAHWMASA-L KEGG:C00032 PDB:3KS0 PDBeChem:HEM PMID:20546754 PROTOPORPHYRIN IX CONTAINING FE Protoheme Protoheme IX [3,7,12,17-tetramethyl-8,13-divinylporphyrin-2,18-dipropanoato(2-)]iron chebi_ontology haem b heme heme b protoheme heme metalloprotoporphyrin