Used as an effective antioxidant and stabilizer in polymers, particularly in polyolefins such as polyethylene and polypropylene. It protects materials from degradation caused by heat, light, and oxygen during processing and long-term use. Commonly added to plastics exposed to high temperatures or outdoor environments, such as automotive parts, packaging films, and construction materials. Also employed in lubricants and adhesives to enhance thermal stability and prolong service life. Shows good compatibility with other stabilizers, often used in synergistic blends with UV absorbers and secondary antioxidants.