92092-94-9 Hem-2G Iron, (7,12-diethenyl-3,8,13,17-tetramethyl-N,N'-bis(3-((6-methyldipyrido(1,2-a:3',2'-d)imidazol-2-yl)amino)propyl)-21H,23H-porphine-2,18-dipropanamidato(2-)-N21,N22,N23,N24)-, (SP-4-2)-