56047-87-1 Benzenesulfonic acid, 4,4',4'',4'''-(21H,23H-porphine- 5,10,15,20-tetrayl)tetrakis-, zinc complex NSC315551 Zincate(4-), [[4,4',4'',4'''-(21H,23H-porphine- 5,10,15,20-tetrayl)tetrakis[benzenesufonato]](6-)- N21,N22,N23,N24]-, tetrahydrogen, (SP-4-1)-