Propenonitrile is a chemical compound with the formula C3H3N. It is also commonly known as acrylonitrile or vinyl cyanide. Acrylonitrile is used in the production of plastics, fibers, and synthetic rubber. Other synonyms for propenonitrile include 2-propenenitrile, cyanovinyl, and cyanoethylene. It is a highly flammable liquid that can cause irritation to the skin, eyes, and respiratory system. It is important to handle propenonitrile with care and follow proper safety precautions. Overall, propenonitrile and its synonyms play a crucial role in the world of chemistry and industry.