Widely used as a UV absorber in organic materials, especially in plastics, coatings, and adhesives. Protects against degradation caused by ultraviolet light, helping to prevent yellowing, cracking, and loss of mechanical strength. Commonly added to polymers such as polyethylene, polypropylene, and polycarbonate for outdoor applications. Also used in cosmetic formulations and sunscreens due to its ability to absorb UV radiation in the 300–400 nm range. Offers good thermal stability and compatibility with a variety of resin systems. Frequently combined with other stabilizers like hindered amine light stabilizers (HALS) for enhanced performance.