Used as a fluorescent probe in biological imaging due to its strong emission properties, enabling visualization of cellular structures and processes. Acts as a precursor in the synthesis of anticoagulant drugs and other coumarin-based pharmaceuticals. Employed in photodynamic therapy research for its light-sensitive characteristics. Serves as a sensor in environmental monitoring to detect metal ions and pH changes. Applied in the development of organic light-emitting diodes (OLEDs) and other optoelectronic devices.