Used as a stabilizer and antioxidant in polymers, particularly in polyolefins such as polyethylene and polypropylene. It helps protect materials from degradation caused by heat and light exposure during processing and long-term use. Effective in extending the service life of plastic products by preventing oxidative breakdown. Also employed in coatings and adhesives to improve durability and resistance to environmental stress. Shows compatibility with other additives, allowing synergistic performance in complex formulations.