21H,23H-Porphine-2,18-dipropanoic acid, 7,12-diethenyl-3,8,13,17-tetramethyl-, disodium salt 50865-01-5 553-12-8 Disodium 1,3,5,8-tetramethyl-2,4-divinylporphine-6,7-dipropionate Disodium 3,8,13,17-tetramethyl-7,12-divinyl-21H,23H-porphine-2,18-dipropionate Disodium protoporphyrin Dojin PM EINECS 256-815-9 NSC 177389 Palepron Protoporphyrin IX disodium salt Protoporphyrin IX, disodium salt Protoporphyrin disodium Protoporphyrin disodium [JAN] Protoporphyrin sodium Protoporphyrin sodium salt Protoporphyrin, disodium salt