Widely used as an ultraviolet (UV) light absorber in organic materials, especially in plastics, coatings, and adhesives. It provides protection against UV-induced degradation, helping to prevent discoloration, cracking, and loss of mechanical strength in polymers exposed to sunlight. Commonly added to polyolefins, polyurethanes, and acrylics for enhanced weatherability. Also found in some industrial coatings and automotive finishes where long-term UV stability is required. Its ability to absorb UV radiation in the 300–400 nm range makes it effective in extending the service life of outdoor-exposed materials.