Used as an intermediate in the synthesis of high-performance polymers, particularly polyaryletherketones and other polyether-based engineering plastics. It contributes to thermal stability and mechanical strength in polymer chains due to its rigid aromatic structure and ether linkages. Also employed in the development of flame-retardant materials and specialty resins for aerospace, automotive, and electronic applications. Additionally, it serves as a building block in certain antioxidants and stabilizers for industrial materials.