Used as a crosslinking agent in polymer chemistry, particularly in the synthesis of specialty resins and thermosetting polymers. Its oxazoline groups react with carboxylic acids, enabling the formation of robust covalent networks that enhance thermal and mechanical stability. Employed in coatings, adhesives, and composite materials where improved durability and chemical resistance are required. Also serves as a ligand or building block in coordination chemistry and catalysis due to its ability to chelate metal ions. Its rigid aromatic backbone supports the design of porous organic frameworks and functional materials.