[{"from": "human", "value": "Could you provide a description of this molecule? [C][C@@H1][C][=Branch1][=Branch2][=C][C][=Branch1][C][=O][O][Ring1][=Branch1][O-1]"}, {"from": "gpt", "value": "The molecule is major microspecies at pH 7.3 It is a conjugate base of a (R)-5-methyl-tetronic acid."}]