Used primarily as a high-performance diamine monomer in the synthesis of polyimides and polyamide-imides, offering exceptional thermal stability and mechanical strength. Its structure enables the production of advanced polymers used in aerospace, microelectronics, and flexible films for insulation. Common in manufacturing components requiring resistance to extreme temperatures and harsh environments, such as in semiconductor packaging and high-temperature adhesives. Also employed in specialty coatings and membranes where durability and dimensional stability are critical.