[{"from": "human", "value": "What can you tell me about this molecule? [C][C][C][=Branch1][C][=O][N][C@@H1][Branch1][Branch1][C][C][S][C][C][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is an N-(fatty acyl)-L-alpha-amino acid anion that is the conjugate base of N-propanoyl-L-methionine, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a N-(fatty acyl)-L-alpha-amino acid anion and a N-(fatty acyl)-L-methionine(1-). It is a conjugate base of a N-propanoyl-L-methionine."}]