Used as a fluorescent probe in biochemical and analytical applications due to its strong emission properties. Commonly employed in the detection of enzyme activity, particularly in assays involving esterases and lipases, where enzymatic cleavage releases the fluorescent moiety. Also utilized in the development of sensors for metal ions and reactive oxygen species. Its photostability and high quantum yield make it suitable for imaging in biological systems. Additionally, it serves as an intermediate in the synthesis of more complex coumarin derivatives with potential pharmaceutical activity.