Used as a building block in the synthesis of metal-organic frameworks (MOFs) due to its rigid aromatic structure and multiple functional groups. The hydroxyl and carboxylic acid groups allow for strong coordination with metal ions, enabling the formation of porous and thermally stable materials. These MOFs are explored for applications in gas storage, catalysis, and selective adsorption of small molecules. Its extended π-conjugated system also makes it suitable for use in optoelectronic materials and sensors. Additionally, it serves as a precursor in the preparation of functional polymers with enhanced thermal and mechanical properties.