Synonyms: Pyropheophorbide a;CHEBI:48398;CHEMBL520220;CHEMBL1807359;C18064;(3S-trans)-9-ethenyl-14-ethyl-4,8,13,18-tetramethyl-20-oxo-3-phorbinepropanoic acid;3-[(3S,4S)-14-ethyl-4,8,13,18-tetramethyl-20-oxo-9-vinylphorbin-3-yl]propanoic acid;3-Phorbinepropanoic acid, 9-ethenyl-14-ethyl-4,8,13,18-tetramethyl-20-oxo-, (3S-trans)-;24533-72-0