SMILES: C1=C(OC(=C1)C(=O)O)C(=O)O
Description: The molecule is a member of the class of furans carrying two carboxy substituents at positions 2 and 5. It has a role as a human urinary metabolite. It is a member of furans and a dicarboxylic acid. It is a conjugate acid of a furan-2,5-dicarboxylate.