Widely used as a photoinitiator in UV-curable systems due to its high reactivity under UV light. It efficiently generates free radicals upon exposure to ultraviolet radiation, making it ideal for rapid curing applications. Commonly found in UV-curable inks, coatings, adhesives, and dental composites. Especially effective in clear coatings and pigmented systems where deep cure and surface hardness are required. Performs well in acrylate-based formulations and is often used in combination with other photoinitiators to broaden the absorption range and improve curing efficiency. Its low yellowing tendency makes it suitable for applications requiring optical clarity and color stability.