Used primarily as a photoinitiator in UV-curable systems, this compound is effective in initiating polymerization under ultraviolet light exposure. It is commonly found in formulations for inks, coatings, and adhesives where rapid curing and low yellowing are required. Its good solubility in polar monomers and low odor make it suitable for clear coatings and sensitive applications. Additionally, it is often used in combination with other photoinitiators to broaden the UV absorption range and improve curing efficiency.