Used primarily as a high-performance antioxidant in polymers, especially in polyolefins such as polyethylene and polypropylene. It protects materials from thermal and oxidative degradation during processing and long-term use, maintaining mechanical properties and appearance. Effective in applications exposed to high temperatures, including cables, films, fibers, and molded parts. Also used in adhesives and elastomers where long-term stability is required. Shows good compatibility with other stabilizers, often combined with UV absorbers for enhanced protection against weathering.