SMILES: C1=CC(=C2C(=C1)OC3=CC(=O)C4=C(C3=N2)C(=O)C=C(N4)C(=O)[O-])C(=O)CC(C(=O)[O-])[NH3+]
Description: The molecule is conjugate base of xanthommatin having both carboxy groups deprotonated and the amino group protonated; major species at pH 7.3. It is a conjugate base of a xanthommatin.