Used primarily as a stabilizer in polymer systems, especially in polyolefins such as polyethylene and polypropylene. It helps protect these materials from degradation caused by heat and oxidation during processing and long-term use. Its sterically hindered structure provides effective radical scavenging, improving the thermal stability and extending the service life of plastics. Also employed in adhesives, elastomers, and lubricants to prevent oxidative deterioration. Due to its low volatility and good compatibility with organic matrices, it remains effective during high-temperature processing and over extended periods under harsh environmental conditions.