Used in the synthesis of high-performance polymers, particularly in the production of polyesters and polyamides with enhanced thermal and chemical resistance. Its structural rigidity and polar functional groups improve the glass transition temperature and mechanical strength of resulting materials. Commonly applied in specialty coatings, films, and engineering plastics where stability under harsh conditions is required. Also serves as a building block in metal-organic frameworks (MOFs) due to its ability to coordinate with metal ions, enabling use in gas storage, separation, and catalysis. Additionally, it finds application in the development of optical brighteners and fluorescent dyes owing to its aromatic structure and electron-donating methoxy group.