[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][=C][C][=Branch1][C][=O][O][C][Ring1][=Branch1][C][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is a 5-oxo-2-furylacetic acid having the C=C double bond at the 3,4-position. It is a conjugate acid of a 5-oxo-2,5-dihydro-2-furylacetate."}]