SMILES: C1=C(C2=C(C(=O)C(=O)C3=C2NC(=C3)C(=O)[O-])N=C1C(=O)[O-])C(=O)[O-]
Description: The molecule is trianionic form of pyrroloquinoline quinone arising from deprotonation of the three carboxy groups. It has a role as a cofactor. It is a conjugate base of a pyrroloquinoline quinone.