This compound is primarily utilized in the field of analytical chemistry as a fluorescent labeling agent. It is often employed to tag biomolecules such as proteins, peptides, and nucleic acids, enabling their detection and quantification through fluorescence spectroscopy. Its strong fluorescence properties make it suitable for use in various bioassays and imaging techniques, aiding in the study of molecular interactions and cellular processes. Additionally, it serves as a key intermediate in the synthesis of more complex coumarin derivatives, which are widely used in pharmaceuticals, dyes, and optical brighteners. Its applications extend to research areas where precise and sensitive detection of biological molecules is required.