Used primarily as an antioxidant in polymers and plastics to prevent degradation from heat and oxidation during processing and long-term use. It stabilizes materials like polyolefins, polystyrene, and synthetic rubbers, extending their service life. Also employed in adhesives and sealants to maintain performance under high-temperature conditions. Shows utility in lubricants and oils to inhibit oxidation and sludge formation. Its sterically hindered structure enhances effectiveness by slowing down radical chain reactions. Common in industrial formulations where thermal stability is critical.