[{"from": "human", "value": "Describe this molecule. [C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][Br]"}, {"from": "gpt", "value": "The molecule appears as colorless crystals. Insoluble in water. "}]