Benzoin (2-hydroxy-1,2-diphenylethanone) is an organic compound primarily used as a photoinitiator in UV-curing processes for the production of inks, coatings, adhesives, and resins. It facilitates polymerization under ultraviolet light, enabling efficient curing in printing and manufacturing applications. In organic synthesis, benzoin serves as a key intermediate and reagent, notably in the benzoin condensation reaction for forming alpha-hydroxy ketones. It is also utilized in the pharmaceutical industry as a building block for synthesizing various drugs and active pharmaceutical ingredients. While the related benzoin resin is more common in fragrances and antiseptics, the pure chemical compound contributes to some cosmetic formulations for its mild balsamic scent and stabilizing properties. Additionally, it finds niche applications in dental materials as a component in light-curable composites.