coproporphyrin III tetramethyl ester
13,17-bis(2-benzyloxycarbonylethyl)-8-(2-carboxyethyl)-3-(2-methoxycarbonylethyl)-2,7,12,18-tetramethylporphin
3,3'-(3,7,12,17-tetramethyl-8,13-divinyl-21H,23H-porphine-2,18-diyl)-bis-propionic acid dimethyl ester
coproporphyrinogen III
C31H38N2O8