Used primarily as a stabilizer in polymer formulations, especially in polyolefins such as polyethylene and polypropylene. It helps protect materials from thermal and oxidative degradation during processing and long-term use. Its long alkyl chains provide good compatibility with hydrophobic polymer matrices, enhancing dispersion and effectiveness. Also functions as an acid scavenger, neutralizing trace catalysts or acidic byproducts that could degrade polymer performance. Commonly found in films, cables, and molded parts where thermal stability and extended service life are critical.