Used as a key intermediate in the synthesis of high-performance polymers, particularly in the production of polyetherimides and epoxy resins. Its structure enables excellent thermal stability and mechanical strength in the resulting materials, making it valuable in aerospace, electronics, and automotive industries. Commonly employed in coatings, adhesives, and composite materials where resistance to heat and chemicals is required. Also investigated for use in specialty films and membranes due to its rigid, aromatic backbone and ability to enhance glass transition temperatures.