[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is a methanesulfonate salt, a member of guanidines and a benzoate ester."}, {"from": "gpt", "value": "[C][C][O][C][=Branch1][C][=O][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O][C][=Branch1][C][=O][C][C][C][C][C][N][=C][Branch1][C][N][N].[C][S][=Branch1][C][=O][=Branch1][C][=O][O]"}]