Synonyms: Ferrate(2-),[7,12-diethenyl-3,8,13,17-tetramethyl-21H,23H-porphine-2,18-dipropanoato(4-)-N21,N22,N23,N24]-,dihydrogen, (SP-4-2)-; Ferrate(2-),[7,12-diethenyl-3,8,13,17-tetramethyl-21H,23H-porphine-2,18-dipropanoato(4-)-kN21,kN22,kN23,kN24]-, dihydrogen, (SP-4-2)- (9CI);Protoporphyrin, iron complex (6CI); 21H,23H-Porphine, ferrate(2-) deriv.;21H,23H-Porphine-2,18-dipropanoic acid, 7,12-diethenyl-3,8,13,17-tetramethyl-,iron complex; 1,3,5,8-Tetramethyl-2,4-divinylporphine-6,7-dipropionic acidferrous complex; Ferroheme; Ferroprotoporphyrin IX; Hem Fe; Heme; Heme b; Ironprotoporphyrin; Iron protoporphyrin IX; Iron(II) protoporphyrin IX; NSC 267100;Protoheme; Protoheme IX; Protoporphyrin IX, iron deriv.; Reduced hematin;[Dihydrogen 3,7,12,17-tetramethyl-8,13-divinyl-2,18-porphinedipropionato(2-)]iron