Used primarily as a photoinitiator in UV-curable systems, this compound plays a key role in polymer chemistry. It is effective in free-radical polymerization reactions triggered by ultraviolet light, making it suitable for inks, coatings, and adhesives that require rapid curing under UV exposure. Its structure allows for efficient generation of radicals upon light absorption, promoting strong and fast crosslinking in thin films. Commonly found in industrial printing and electronic coatings where oxygen inhibition is minimal and deep cure is not required.