Used primarily in the production of polymers and copolymers, 4-cyanostyrene is a key monomer in the synthesis of materials with high thermal stability and chemical resistance. It is often incorporated into specialty plastics and resins, making it valuable in the manufacturing of electronic components, optical devices, and coatings. Additionally, its presence in polymer chains enhances adhesion properties, making it useful in adhesive formulations. The compound also finds applications in organic synthesis, serving as a building block for more complex chemical structures in pharmaceuticals and agrochemicals.