Widely used as a UV absorber in organic materials, especially in plastics, coatings, and adhesives. It protects polymers from degradation caused by ultraviolet radiation, helping to prevent yellowing, cracking, and loss of mechanical strength. Commonly added to polyolefins, polyurethanes, and acrylics for enhanced weatherability. Also employed in cosmetic formulations and sunscreens due to its ability to absorb UV light in the 300–400 nm range. Offers good thermal stability and compatibility with a variety of resins and oils. Often used in combination with other stabilizers like hindered amine light stabilizers (HALS) for synergistic effects.