Used primarily in organic synthesis, 2-Hydroxy-3-phenyl-1,4-naphthoquinone serves as a key intermediate in the production of dyes and pigments, particularly for coloring textiles, plastics, and cosmetics. It also finds application in the development of pharmaceutical agents, where it is utilized for its potential biological activities, including antimicrobial, antioxidant, and anticancer properties. Additionally, it is employed in research settings for studying redox reactions, as a reagent in various chemical transformations, and in cosmetic formulations to protect skin from UV-induced damage.