Used as a reactive diluent and crosslinking agent in epoxy resin systems, improving flexibility and adhesion in coatings, adhesives, and composite materials. Its terminal epoxy group enables copolymerization with various curing agents, while the internal double bond allows for further chemical modification, such as grafting or functionalization. Commonly applied in specialty polymers and surface treatments where controlled reactivity and compatibility are required. Also serves as an intermediate in synthesizing fine chemicals and functional monomers for advanced material applications.