Used in the synthesis of high-performance polymers and polyesters, particularly in producing heat-resistant and chemically stable engineering plastics. It serves as a building block in specialty resins for coatings, films, and fibers requiring enhanced durability. Also employed in the development of metal-organic frameworks (MOFs) for gas storage and catalysis due to its rigid aromatic structure. Additionally, it finds use in dye manufacturing and as an intermediate in organic synthesis for pharmaceuticals and functional materials.