[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][Branch1][#Branch1][C][N+1][=Branch1][C][=O][O-1][C][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is the conjugate base of 3-nitropropanoic acid; major species at pH 7.3. It is a conjugate base of a 3-nitropropanoic acid. It is a tautomer of a 3-aci-nitropropanoate."}]