Used primarily as a photoinitiator in UV-curable systems, this compound plays a key role in polymer chemistry. It is especially effective in free radical polymerization processes triggered by ultraviolet light. Common applications include UV-curable inks, coatings, and adhesives, where it helps achieve rapid curing and strong cross-linking. Its performance in low-odor formulations makes it suitable for printing inks and clear coatings where volatile byproducts are undesirable. Additionally, it is valued in combination with other photoinitiators to broaden the UV absorption range and improve curing efficiency under varied light conditions.