SMILES: CC1=C(C(=[NH+]C1C=C)/C=C\\2/C(=C(/C(=C/C3=C(C(=C(N3)/C=C\\4/C(=C(C=[NH+]4)C=C)C)C)CCC(=O)[O-])/N2)CCC(=O)[O-])C)C=C
Description: The molecule is an iminium betaine resulting from a transfer of two protons from the carboxy groups to the imino groups of anaerobilin; major species at pH 7.3. It is a tautomer of an anaerobilin.