[{"from": "human", "value": "Provide a description of this molecule. [C][C][=C][C][=Branch1][=Branch2][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O][N+1][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule are yellow-colored crystals. They are slightly soluble in water and weigh more than water. Contact with the material may cause irritation to skin, eyes, and mucous membranes. They are toxic by ingestion or skin contact. They are used to make other chemicals."}]