Synonyms: Mesoferriheme;AC1L4VAZ;3-[8,13-diethyl-3,7,12,17-tetramethyl-18-(3-oxido-3-oxopropyl)porphyrin-21,24-diid-2-yl]propanoate; hydron; iron(2+);Ferrate(2-), (7,12-diethyl-3,8,13,17-tetramethyl-21H,23H-porphine-2,18-dipropanoato(4-)-N21,N22,N23,N24)-, dihydrogen, (SP-4-2)-