Used as a crosslinking agent in polymer chemistry, particularly in the modification of rubber and epoxy resins to enhance thermal stability and mechanical strength. It is effective in improving the performance of adhesives and coatings by promoting network formation between polymer chains. Also employed in the synthesis of high-performance materials for electronics and aerospace applications due to its ability to form thermally resistant imide structures. Its reactivity with amines and thiols makes it useful in specialty curing systems and functionalization of biomolecules in research settings.