Used primarily as a high-performance UV absorber in polymer systems, this compound provides excellent protection against long-term exposure to sunlight and thermal degradation. It is especially effective in coatings, polyurethanes, and engineering plastics where long-term weatherability is critical. Its molecular structure allows for strong absorption in the UV-A and UV-B range, making it ideal for outdoor applications such as automotive finishes, industrial coatings, and plastic components exposed to harsh environmental conditions. Due to its high molecular weight and stability, it exhibits low volatility and resists extraction, ensuring durable protection over time. It is often combined with other stabilizers like hindered amine light stabilizers (HALS) for synergistic effects in preventing photo-oxidative degradation.