SMILES: CC1=C(C2=CC3=NC(=CC4=C(/C(=C/O)/C(=N4)C=C5C(=C(C(=N5)C=C1N2)C(CC/C=C(\\C)/CC/C=C(\\C)/CCC=C(C)C)O)C)CCC(=O)O)C(=C3C)CCC(=O)O)C=C
Description: 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.