SMILES: C1=C(NC2=C(C(=C3C=C(N=C3C2=C1C(=O)O)C(=O)O)O)O)C(=O)O
Description: The molecule is a pyrroloquinoline having hydroxy groups at the 4- and 5-positions and carboxy groups at the 2-, 7- and 9-positions. It is a tricarboxylic acid and a pyrroloquinoline cofactor. It is a conjugate acid of a pyrroloquinoline quinol(3-) and a pyrroloquinoline quinol(4-).