[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is an agent thought to have disinfectant properties and used as an expectorant. Guaiacol is a phenolic natural product first isolated from Guaiac resin and the oxidation of lignin. Guaiacol is also present in wood smoke, as a product of pyrolysis of lignin. Guaiacol has been found in the urine of patients with neuroblastoma and pheochromocytoma."}, {"from": "gpt", "value": "[C][O][C][=C][C][=C][C][=C][Ring1][=Branch1][O]"}]