Used primarily as a photoinitiator in UV-curable inks, coatings, and adhesives, enabling rapid hardening upon exposure to ultraviolet light. Commonly added to plastics and packaging materials to absorb UV radiation and prevent degradation, extending product shelf life. Found in sunscreens and cosmetics for its ability to protect against UV light, reducing skin damage. Also serves as an intermediate in the synthesis of pharmaceuticals and agrochemicals. Widely utilized in research laboratories as a triplet sensitizer in photochemical reactions. Additionally, employed in perfumes and fragrances as a fixative to prolong scent duration.