[{"from": "human", "value": "What can you tell me about this molecule? [C@@H1][Branch1][#Branch2][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O][O][Branch1][=Branch1][C][=Branch1][C][=O][O][O]"}, {"from": "gpt", "value": "The molecule is a 2,3-dihydroxybutanedioic acid that has meso configuration. It is a conjugate acid of a meso-tartrate(1-)."}]