Synonyms: 2,7,12,17-Porphinetetrapropionicacid, 3,8,13,18-tetrakis(carboxymethyl)-, octamethyl ester (8CI);21H,23H-Porphine-2,7,12,17-tetrapropanoic acid,3,8,13,18-tetrakis(2-methoxy-2-oxoethyl)-, tetramethyl ester (9CI);Uroporphyrin I, octamethyl ester (6CI,7CI); NSC 89197