[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is a white crystalline powder with a fragrant caramel-butterscotch odor. pH (5% aqueous solution) 5.3. "}, {"from": "gpt", "value": "[C][C][=C][Branch1][#Branch2][C][=Branch1][C][=O][C][=C][O][Ring1][#Branch1][O]"}]