Used primarily 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 is especially effective in free radical polymerization reactions, where it helps initiate crosslinking upon exposure to UV radiation. Due to its good solubility in organic matrices and efficient radical generation, it is favored in printing inks and clear coatings where yellowing resistance and deep cure are important. Its bifunctional structure enhances reactivity and network formation, leading to improved film hardness and chemical resistance in the final cured product.