Used as a crosslinking agent in polymer chemistry, especially in the production of high-performance coatings and adhesives. It enhances thermal stability and mechanical strength of polyurethanes and epoxy resins. Commonly applied in water-based systems where it improves film formation and durability. Also utilized in the synthesis of specialty gels and foams due to its ability to form hydrazone linkages under mild conditions. Plays a role in pharmaceutical and agrochemical formulations as a building block for heterocyclic compounds. Additionally, serves in corrosion inhibitors and metal surface treatments by forming protective complexes.