7-Hydroxy-4-benzopyrone is primarily used in the field of organic synthesis as a key intermediate for the production of various coumarin derivatives. These derivatives are widely utilized in the development of pharmaceuticals, particularly in the synthesis of anticoagulant drugs like warfarin. Additionally, it serves as a building block in the creation of fluorescent dyes and optical brighteners, which are applied in textiles, paper, and detergents to enhance brightness and whiteness. Its role in the synthesis of organic compounds also extends to the production of fragrances and flavoring agents, where it contributes to the aromatic profiles of certain products. Furthermore, it is explored in research for its potential antioxidant and anti-inflammatory properties, making it a subject of interest in the development of therapeutic agents.