35218-75-8 39050-26-5 78985-28-1 80202-44-4 87897-62-9 88878-17-5 Benzenesulfonic acid, 4,4',4'',4'''-(21H,23H-porphine-5,10,15,20-tetrayl)tetrakis-, tetrasodium salt EINECS 254-262-8 NSC 322091 Tetrasodium meso-tetra(p-sulfonatophenyl)porphine Tetrasodium p,p',p'',p'''-(21H,23H-porphine-5,10,15,20-tetrayl)tetrakis(benzenesulphonate) meso-Tetra(4-sulfonatophenyl)porphine, tetrasodium salt meso-Tetrakis(p-sulfophenyl)porphine tetrasodium salt