Used primarily as a stabilizer in polymer systems, especially in polycarbonate plastics and polyurethanes. It prevents degradation caused by heat and oxidation during processing and extends the service life of the material. Commonly found in engineering plastics, electronic components, and automotive parts where thermal stability is critical. Also employed in adhesive formulations and coatings to maintain performance under high-temperature conditions. Its hindered phenolic structure provides effective radical scavenging, making it valuable in multi-functional antioxidant systems.