Used as a UV absorber and light stabilizer in polymers, particularly in plastics and coatings. It helps prevent degradation caused by ultraviolet radiation, thereby extending the lifespan and maintaining the appearance of materials exposed to sunlight. Commonly added to polyvinyl chloride (PVC), polyurethanes, and acrylics to reduce yellowing, cracking, and loss of mechanical strength. Also found in adhesives and sealants where long-term weather resistance is required. Its compatibility with various organic matrices makes it suitable for clear and pigmented formulations.