Used primarily as a light stabilizer in polymers, this chemical protects materials from degradation caused by UV radiation. It is especially effective in polyolefins, polyurethanes, and acrylics, helping to prevent yellowing, cracking, and loss of mechanical strength when exposed to sunlight. Common applications include automotive coatings, exterior building materials, agricultural films, and packaging where long-term weatherability is required. Its structure allows it to act as a radical scavenger, neutralizing free radicals generated during UV exposure, thus extending the service life of the polymer. It is often used in combination with other stabilizers for enhanced performance.