The molecule is a magnesium porphyrin, a methyl ester and a dicarboxylic acid monoester. It derives from a magnesium protoporphyrin 13-monomethyl ester. It is a conjugate acid of a magnesium 13(1)-oxoprotoporphyrin 13-monomethyl ester(1-).
magnesium;3-[8,13-bis(ethenyl)-18-(3-methoxy-3-oxopropanoyl)-3,7,12,17-tetramethylporphyrin-21,23-diium-22,24-diid-2-yl]propanoic acid