Widely used as an antioxidant in plastics, rubber, and fuels to prevent degradation from heat and oxidation. Effective in stabilizing polymers during processing and extending service life. Commonly added to polyolefins, polystyrene, and synthetic rubbers. Also used in lubricants and transformer oils to maintain performance under high-temperature conditions. Shows strong resistance to volatilization and extraction, making it suitable for long-term thermal stability applications.