[{"from": "human", "value": "What can you tell me about this molecule? [C][C][=Branch1][C][=O][N][C@@H1][Branch1][O][C][C][S][=Branch1][C][=O][=Branch1][C][=O][C][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is an N-acyl-L-alpha-amino acid that is N-acetylmethionine where the sulfur is oxidised to the corresponding sulfone. It is a N-acyl-L-alpha-amino acid, a L-methionine derivative, a sulfone and a N-acetyl-L-amino acid. It is a conjugate acid of a N-acetylmethionine sulfone(1-)."}]