[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a clear light yellow to light amber slightly viscous liquid with a mustard-like odor. "}, {"from": "gpt", "value": "[C][C][C][C][Branch1][=Branch2][O][C][Branch1][Ring2][O][Ring1][=Branch1][C][O][C][=Branch1][C][=O][C]"}]