Used as a reactive intermediate in polymer chemistry, particularly for modifying resins and creating functionalized polymers. It serves as a crosslinking agent in ion-exchange resins and chromatography supports due to its ability to introduce reactive sites. Commonly employed in the synthesis of specialty monomers for copolymerization, enhancing adhesion and chemical resistance in coatings. Also utilized in the preparation of functionalized surfaces for biosensors and immobilization of biomolecules. Its reactivity allows for easy attachment to aromatic systems, making it valuable in organic synthesis for building complex molecules.