Used primarily as a high-performance antioxidant in polymers, especially in engineering plastics and polyolefins. It provides excellent thermal stability during processing and extends the service life of plastic products exposed to high temperatures and oxidative environments. Commonly found in automotive components, electrical insulation, and industrial films where long-term heat resistance is critical. Also utilized in adhesives and sealants to prevent degradation from UV and thermal exposure. Shows good compatibility with other stabilizers, making it suitable for synergistic stabilization systems.