[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is the conjugate base of methylcarbamic acid; major microspecies at pH 7.3. It is functionally related to a carbamate. It is a conjugate base of a methylcarbamic acid."}, {"from": "gpt", "value": "[C][N][C][=Branch1][C][=O][O-1]"}]