Molecular Formula: 2C41H42N4O8 Formula Weight: 1437.61
(4R,4aS)-rel-18-ethenyl-4,4a-dihydro-3,4-bis(methoxycarbonyl)-4a,8,14,19-tetramethyl-24H,26H-Benzo[b]porphine-9,13-dipropanoic acid monomethyl ester;trans-18-ethenyl-4,4a-dihydro-3,4-bis(methoxycarbonyl)-4a,8,14,19-tetramethyl-23H,25H-Benzo[b]porphine-9,13-dipropanoic acid monomethyl ester;Visudyne