[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is a colorless to straw-colored liquid with a mild odor. Sinks and mixes with water. (USCG, 1999)"}, {"from": "gpt", "value": "[C][Branch1][N][C][O][C][C][O][C][C][O][C][C][O][O]"}]