Synonyms: Ferrate(8-),[(12S,13S,17S,18S)-2,8,13,18-tetrakis(carboxymethyl)-12,13,17,18-tetrahydro-13,18-dimethyl-21H,22H-porphine-3,7,12,17-tetrapropanoato(10-)-kN21,kN22,kN23,kN24]-, octahydrogen, (SP-4-2)-(9CI); Ferrate(8-),[3,8,13,17-tetrakis(carboxymethyl)-7,8,12,13-tetrahydro-8,13-dimethyl-21H,23H-porphine-2,7,12,18-tetrapropanoato(10-)-kN21,kN22,kN23,kN24]-, octahydrogen,[SP-4-2-[7S-(7a,8b,12a,13b)]]-; Siroheme