[{"from": "human", "value": "Describe this molecule. [C][C][=C][C][=C][Ring1][Branch1]"}, {"from": "gpt", "value": "The molecule is a colorless liquid with an irritating, terpene-like odor. Bp: 42.5 \u00b0C; Flash point: 77 \u00b0F. Density: 0.805 g cm-3."}]