Used primarily as a photoinitiator in UV-curable systems, this compound plays a key role in polymer chemistry. It effectively generates free radicals upon exposure to ultraviolet light, making it suitable for initiating polymerization in coatings, inks, and adhesives. Its ability to absorb UV light and undergo efficient cleavage allows for rapid curing even under low-intensity UV sources. It is especially valued in formulations requiring deep cure and good surface hardness. Additionally, due to its thermal stability in the dark, it offers long shelf life and processing safety. Commonly found in dental composites and electronic encapsulants where precise curing control is essential.