3,3'-(12-formyl-3,8,13,17-tetramethyl-7-vinylporphyrin-2,18-diyl)dipropionic acid

3-{(1Z,5Z,9Z,14Z)-18-(2-Carboxy-ethyl)-7-hydroxy-3,7,12,17-tetramethyl-8-[2-oxo-eth-(Z)-ylidene]-13-vinyl-7,8,22,24-tetrahydro-porphin-2-yl}-propionic acid

β-(3,5-Dimethylphenyl)ethanesulfonyl azide