Used as a photoinitiator in UV-curable systems, this compound plays a key role in inks, coatings, and adhesives that require rapid curing under ultraviolet light. It helps initiate polymerization upon exposure to UV radiation, leading to fast drying and strong film formation. Commonly found in printing inks and electronic coatings where low yellowing and high reactivity are needed. Also suitable for clear coatings due to its good light stability and efficiency in radical polymerization processes.