27647-84-3 60146-42-1 Zinc(II) tetrakis(4-carboxyphenyl)porphine Zincate(4-), ((4,4',4'',4'''-(21H,23H-porphine-5,10,15,20-tetrayl)tetrakis(benzoato))(6-)-N21,N22,N23,N24)-, tetrahydrogen, (SP-4-1)- Zn-Tcpp