Used primarily as a photoinitiator in UV-curable systems, this compound plays a key role in polymerization processes triggered by light. It is especially effective in free radical and cationic curing of coatings, inks, and adhesives. Its ability to absorb UV light and generate reactive species makes it suitable for applications requiring fast curing under low-intensity UV sources. It is often chosen for systems where low yellowing and high transparency are important, such as in clear coatings and thin films. Additionally, it exhibits good solubility in polar monomers and oligomers, enhancing formulation flexibility.