The molecule is a cyclic tetrapyrrole that consists of porphyrin bearing several substituents including methyl, vinyl, formyl, hydroxy and hydroxyalkatrienyl. The parent of the class of cytoporphyrins. It is a conjugate acid of a cytoporphyrinate.
3-[(17Z)-18-(2-carboxyethyl)-7-ethenyl-17-(hydroxymethylidene)-12-[(4E,8E)-1-hydroxy-5,9,13-trimethyltetradeca-4,8,12-trienyl]-3,8,13-trimethyl-22H-porphyrin-2-yl]propanoic acid