Synonyms: 3-Phorbinepropanoicacid, 9-ethenyl-14-ethyl-21-(methoxycarbonyl)-4,8,13,18-tetramethyl-20-oxo-,[3S-(3a,4b,21b)]-;3-Phorbinepropionic acid,21-carboxy-14-ethyl-4,8,13,18-tetramethyl-20-oxo-9-vinyl-, 21-methyl ester(8CI);Pheophorbide a (6CI,7CI);2-Deacetyl-2-vinylbacteriopheophorbide;Phaeophorbide a;Pheophorbide a5;