14325-03-2 Cobalt protoporphyrin Cobalt protoporphyrin IX 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-)-kappaN21,kappaN22,kappaN23,kappaN24)-, dihydrogen, (SP-4-2)- Cobaltiprotoporphyrin NSC 267101