This chemical is primarily utilized as a stabilizer and antioxidant in various polymer systems. It is effective in preventing the degradation of polymers caused by heat, light, and oxidation, thereby extending the lifespan of plastic products. It is commonly incorporated into polyolefins, such as polyethylene and polypropylene, to enhance their durability and performance in applications like packaging materials, automotive components, and construction products. Additionally, it finds use in the formulation of high-performance coatings and adhesives, where it contributes to improved resistance to environmental stressors. Its ability to act as a phosphine oxide also makes it valuable in certain catalytic processes and as a ligand in organometallic chemistry.