[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][/C][=C][/C][=C][/C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule appears as white powder or crystals. Melting point 134.5 \u00b0C. Slightly acidic and astringent taste with a faint odor."}]