Used as a curing agent and crosslinking agent in high-performance polymers, particularly in polyurethanes and epoxy resins. Its rigid biphenyl structure and nitro groups contribute to thermal stability and mechanical strength in cured materials. Commonly applied in aerospace, defense, and electronics industries where heat-resistant and durable coatings or adhesives are required. Also investigated as a precursor in energetic materials due to its nitro functionality and structural symmetry.