Widely used as a UV absorber in polymer systems, this compound effectively protects materials from degradation caused by ultraviolet radiation. It is commonly incorporated into coatings, plastics, and adhesives to enhance weatherability and prolong service life. Its reactive functional group allows it to covalently bond into polymer networks during curing, reducing leaching and providing long-term stability. Especially valuable in automotive coatings and exterior building materials, it maintains clarity and color while preventing photo-oxidative damage. It is also used in UV-curable formulations where durability and light resistance are critical.