Used as a crosslinking agent in polymer chemistry, particularly in the modification of polyacrylonitrile fibers to improve thermal stability and dyeability. Acts as a curing agent for epoxy resins, enhancing mechanical strength and chemical resistance in coatings and adhesives. Employed in the synthesis of heterocyclic compounds for pharmaceuticals and agrochemicals due to its bifunctional hydrazide structure. Also utilized in the preparation of specialty explosives and propellants where controlled decomposition and stability are required.