Used as a photoinitiator in UV-curable formulations, enabling rapid polymerization of inks, coatings, and adhesives upon exposure to ultraviolet light. It is especially effective in clear coatings and pigmented systems due to its ability to generate free radicals efficiently under UV-A and UV-B radiation. Commonly found in printing inks, electronic encapsulants, and industrial coatings where low yellowing and high reactivity are required. Also suitable for dual-cure systems, where it supports both UV and thermal curing mechanisms, enhancing formulation flexibility.