Used as a key intermediate in the synthesis of high-performance polymers, particularly polyimides and polyesters. Its rigid aromatic structure contributes to thermal stability and mechanical strength in the resulting materials. Commonly employed in electronics for manufacturing heat-resistant coatings, insulating films, and printed circuit boards. Also utilized in specialty resins requiring excellent oxidative and chemical resistance. Shows application in advanced composites for aerospace and microelectronics due to its ability to enhance glass transition temperature and dimensional stability.