Used as a key monomer in the synthesis of high-performance polyesters and copolyesters, particularly in the production of thermotropic liquid crystalline polymers (LCPs). Its rigid aromatic structure combined with flexible aliphatic linkers enhances polymer processability while maintaining thermal stability and mechanical strength. Commonly applied in engineering plastics for electronics, automotive components, and connectors due to excellent heat resistance, dimensional stability, and flame retardancy. Also utilized in specialty coatings and films requiring chemical resistance and low moisture absorption. Additionally, employed in the synthesis of metal-organic frameworks (MOFs) for gas adsorption and catalysis.