14325-05-4 NSC 267099 Sn Protoporphyrin Snpp protoporphyrin Stannate(2-), (7,12-diethenyl-3,8,13,17-tetramethyl-21H,23H-porphine-2,18-dipropanoato(4-)-N21,N22,N23,N24)-, dihydrogen, (SP-4-2)- Stannate(2-), dichloro(7,12-diethenyl-3,8,13,17-tetramethyl-21H,23H-porphine-2,18-dipropanoato(4-)-kappaN21,kappaN22,kappaN23,kappaN24)-, dihydrogen, (OC-6-13)- Tin protoporphyrin IX Tin-protoporphyrin