Used as an antioxidant in plastics and polymers to prevent degradation from heat and UV exposure. Helps stabilize polyolefins like polyethylene and polypropylene during processing and extends product lifespan. Commonly used in packaging, automotive parts, and agricultural films. Also acts as a stabilizer in lubricants and oils to reduce oxidation and maintain performance under high temperatures. Some derivatives serve as intermediates in organic synthesis and flame retardants in industrial formulations.