Widely used as a photoinitiator in UV-curable systems, this compound plays a key role in initiating free radical polymerization upon exposure to ultraviolet light. It is especially effective in clear coatings, inks, and adhesives where deep cure and good surface hardness are required. Due to its ability to cure formulations quickly under UV light, it is commonly found in printing inks, wood coatings, and electronic materials. It performs well in pigmented systems and offers low yellowing, making it suitable for applications requiring optical clarity. Additionally, it is used in 3D printing resins and dental composites where rapid curing and reliability are critical.