[{"from": "human", "value": "Could you provide a description of this molecule? [C][C@@H1][Branch1][#C][C@@H1][Branch1][O][C][C][=Branch1][C][=O][C][=Branch1][C][=O][O-1][O][O]"}, {"from": "gpt", "value": "The molecule is a carbohydrate acid anion arising from deprotonation of the carboxy group of 2-dehydro-3-deoxy-L-rhamnonic acid; major species at pH 7.3. It is a conjugate base of a 2-dehydro-3-deoxy-L-rhamnonic acid."}]