[{"from": "human", "value": "Provide a description of this molecule. [C][=C][C][=Branch1][O][=C][C][=C][Ring1][=Branch1][N+1][=Branch1][C][=O][O-1][Cl]"}, {"from": "gpt", "value": "The molecule is a light yellow crystalline solid. Density 1.520 g / cm3. Melting point 83 \u00b0C. Sweet odor. Very toxic by inhalation, ingestion, and skin absorption."}]