[{"from": "human", "value": "What can you tell me about this molecule? [C][C][Branch1][C][C][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][N][C][=Branch1][C][=O][C]"}, {"from": "gpt", "value": "The molecule is an N-acyl-L-alpha-amino acid anion that is the conjugate base of N-acetyl-L-leucine: major species at pH 7.3. It is a conjugate base of a N-acetyl-L-leucine. It is an enantiomer of a N-acetyl-D-leucinate."}]