[{"from": "human", "value": "Use the given information to create a molecule that fulfills the desired purpose. The molecule appears as a colorless to pale-yellow colored liquid with a pleasant odor. Flash point 65 \u00b0F. Insoluble in water and denser than water. Vapors are heavier than air and may be narcotic in high concentrations. Used to make other chemicals."}, {"from": "gpt", "value": "[C][C][C][Branch1][C][C][Br]"}]