Used as a crosslinking agent in polymer chemistry, particularly in the modification of epoxy resins to enhance thermal stability and mechanical strength. It is also employed in the synthesis of functional polymers for sensors and coatings due to the presence of the nitrophenyl group, which can participate in electron-transfer processes. Its epoxy functionality allows for ring-opening reactions with amines, alcohols, or acids, making it useful in tailoring resin curing properties. Additionally, it serves as an intermediate in the preparation of specialty chemicals, including pharmaceuticals and agrochemicals, where controlled reactivity and aromatic functionality are required.