Used primarily as a key intermediate in the synthesis of high-performance polymers, particularly polyetherketones and polyimides. Its reactivity allows for the formation of robust aromatic ketone linkages, contributing to materials with exceptional thermal stability, mechanical strength, and chemical resistance. Commonly employed in aerospace, electronics, and automotive industries for manufacturing durable components and high-temperature resistant coatings. Also utilized in the preparation of specialty resins and engineering plastics where superior performance under extreme conditions is required.