Used as a curing agent or crosslinking promoter in specialty polymer systems, particularly in high-performance resins and elastomers. Its dual propargyl groups enable thermal curing through alkyne cyclization reactions, forming thermally stable networks suitable for aerospace and electronic encapsulation applications. Commonly employed in heat-resistant coatings and adhesives where low volatility and high glass transition temperatures are required. Also utilized in the synthesis of functional monomers for advanced composite materials and as a building block in click chemistry for polymer modification.