[{"from": "human", "value": "Please give me some details about this molecule. [C][C][=Branch1][C][=O][N][C@@H1][Branch1][#Branch1][C][C][=Branch1][C][=O][O-1][C][=Branch1][C][=O][N][C@@H1][Branch1][Branch2][C][C][C][=Branch1][C][=O][O-1][C][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is a peptide anion obtained by deprotonation of the three carboxy groups of N-acetyl-Asp-Glu; major species at pH 7.3. It is a conjugate base of an Ac-Asp-Glu."}]