[{"from": "human", "value": "Create a molecule with the structure as the one described. The molecule is the conjugate base of N-formyl-L-methionine; major species at pH 7.3. It is a conjugate base of a N-formyl-L-methionine."}, {"from": "gpt", "value": "[C][S][C][C][C@@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][N][C][=O]"}]