[{"from": "human", "value": "Could you provide a description of this molecule? [C][=C][C][=Branch1][#Branch2][=C][Branch1][=Branch1][C][=C][Ring1][=Branch1][O][Cl][Cl]"}, {"from": "gpt", "value": "The molecule appears as needles (from benzene, petroleum ether) or light brown and yellow crystals. Odor threshold 100 micrograms/liter. Taste threshold 0.3 micrograms/liter in water. "}]