Porphine

3,8,13-tris(carboxymethyl)-17-methyl-21H,23H-Porphine-2,7,12,18-tetrapropanoic acid

Methyl trans-8,13-diethyl-2,3-dihydro-18-(methoxycarbonyl)-20-(2-methoxy-2-oxoethyl)-3,7,12,17-tetramethyl-21H,23H-porphine-2-propionate