[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C@@H1][Branch1][#Branch2][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][N][C][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is a dicarboxylic acid dianion. It is a conjugate base of a threo-3-methyl-L-aspartate(1-)."}]