3-Phorbinepropanoic acid, 9-ethenyl-14-ethyl-21-(methoxycarbonyl)-4,8,13,18-tetramethyl-20-oxo-, methyl ester, (3S-(3alpha,4beta,21beta))- 3-Phorbinepropionic acid, 21-carboxy-14-ethyl-4,8,13,18-tetramethyl-20-oxo-9-vinyl-, dimethyl ester (VAN) (8CI) 5594-30-9 EINECS 227-007-3 Methyl (3S-(3alpha,4beta,21beta))-14-ethyl-21-(methoxycarbonyl)-4,8,13,18-tetramethyl-20-oxo-9-vinylphorbine-3-propionate Methyl phaeophorbide Methyl phaeophorbide A Methylpheophorbide NSC 407320 Phaeophorbid A, methyl ester