Used as a highly effective antioxidant in polymers, particularly in rubber and plastic materials, to prevent degradation caused by heat, light, and oxygen. It stabilizes the polymer structure during processing and extends the service life of the product. Commonly employed in wire and cable insulation, automotive components, and industrial rubber goods where long-term thermal stability is required. Also utilized in adhesives and sealants to maintain flexibility and strength over time. Its bifunctional phenolic structure allows for efficient radical scavenging, making it suitable for applications demanding high performance under prolonged stress conditions.