1,3,5,8-Tetramethyl-2,4-bis(.alpha.-hydroxyethyl)prophine-6,7-dipropionic acid 14459-29-1 2,18-Porphinedipropionic acid, 7,12-bis(1-hydroxyethyl)-3,8,13,17-tetramethyl- 21H,23H-Porphine-2,18-dipropanoic acid, 7,12-bis(1-hydroxyethyl)-3,8,13,17-tetramethyl- HEMATOPORPHYRIN HP Hematoporphyrin I NSC 59265 NSC59265 Photodyn WLN: T D5 I5 N5-16-5 A D- I- N- AM D-N I-M N-NJ EYQ F J K2VQ O2VQ TYQ U