[{"from": "human", "value": "What can you tell me about this molecule? [C][C][C][Branch1][=Branch1][O][C][=C][Ring1][=Branch1][C][=O]"}, {"from": "gpt", "value": "The molecule appears as a colorless or yellow liquid with a pungent disagreeable odor. May be irritating to the eyes and mucous membranes; long-term exposure may result in adverse health effects. Vapors denser than air. Used to make other chemicals, plastics."}]