Synonyms: Cobalt,[dihydrogen 3,7,12,17-tetramethyl-8,13-divinyl-2,18-porphinedipropionato(2-)]-(8CI); Cobalt, [dihydrogen protoporphyrin IX-ato(2-)]- (7CI); Cobaltate(2-),[7,12-diethenyl-3,8,13,17-tetramethyl-21H,23H-porphine-2,18-dipropanoato(4-)-N21,N22,N23,N24]-,dihydrogen, (SP-4-2)-; Cobaltate(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); 21H,23H-Porphine, cobaltate(2-) deriv.;21H,23H-Porphine-2,18-dipropanoic acid, 7,12-diethenyl-3,8,13,17-tetramethyl-,cobalt complex; Cobalt protoporphyrin IX; Cobalt(II) protoporphyrin IX;Cobalt-heme; NSC 267101