[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][=C][C][#N]"}, {"from": "gpt", "value": "The molecule appears as a clear colorless liquid with a strong pungent odor. Flash point 32 \u00b0F. Prolonged exposure to the vapors or skin contact harmful. Density 6.7 lb / gal. Vapors heavier than air. Combustion produces toxic oxides of nitrogen. Requires storage and handling in closed systems. Used in insecticides and to make plastics, fibers and other chemicals.   Rate of onset: Immediate  Persistence: Minutes to hours  Odor threshold: 17 ppm  Source/use/other hazard: Plastics, coatings, adhesives industries; dyes; pharmaceuticals; flam gas."}]