Used extensively in the fragrance industry to impart a sweet, pleasant aroma in perfumes, soaps, and cosmetics. It is also employed as a flavoring agent in foods and beverages, providing a vanilla-like or almond-like taste. In the pharmaceutical sector, it serves as a precursor for anticoagulant drugs like warfarin. Additionally, it is utilized in the production of certain dyes and as a sensitizer in photovoltaic cells for energy applications. Its fluorescence properties make it useful in laser dyes and as a marker in biochemical studies. Note: Coumarin and its derivatives require careful handling due to potential hepatotoxicity.