[{"from": "human", "value": "Use the given information to create a molecule that fulfills the desired purpose. The molecule is major microspecies at pH 7.3. It is an oxo carboxylic acid anion, a dicarboxylic acid dianion and an amino acid."}, {"from": "gpt", "value": "[C][C][Branch1][C][C][Branch1][N][C][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][NH3+1][C][=Branch1][C][=O][C][=Branch1][C][=O][O-1]"}]