4-Vinylaniline is widely used as a key intermediate in the synthesis of various polymers and resins, particularly in the production of specialty polymers like polyaniline, which are essential in the development of conductive materials. These materials find applications in electronic devices, sensors, and anti-static coatings due to their unique electrical properties.

Additionally, it serves as a building block in the creation of dyes and pigments, contributing to the vibrant colors in textiles, inks, and coatings. Its vinyl group allows for polymerization, making it valuable in the manufacture of adhesives, coatings, and composites with enhanced mechanical and chemical resistance.

In the pharmaceutical industry, 4-Vinylaniline is utilized as a precursor in the synthesis of certain drugs and bioactive compounds, playing a role in the development of new therapeutic agents. Its versatility and reactivity make it a crucial component in both industrial and research applications.