[{"from": "human", "value": "What can you tell me about this molecule? [C][C@@][Branch1][O][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][NH3+1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][O]"}, {"from": "gpt", "value": "The molecule is a dicarboxylic acid dianion. It is an enantiomer of a (2S,4S)-4-hydroxy-4-methylglutamate(1-)."}]