Used as a highly effective photoinitiator in radical polymerization reactions, particularly in UV-curable systems. It enables rapid curing of coatings, inks, and adhesives under mild light exposure due to its strong absorption in the near-UV to visible range. Its thermal stability makes it suitable for applications requiring long shelf life and controlled initiation. Also employed in advanced lithography and 3D printing technologies where precise spatial control of polymerization is needed. The presence of iodophenyl groups enhances both solubility in organic matrices and efficiency in electron transfer processes.