Coumarin 314 is widely used as a fluorescent dye in various scientific and industrial applications. It is commonly employed in laser dyes due to its strong fluorescence properties, making it suitable for tunable dye lasers, particularly in the blue-green spectral range. Additionally, it is utilized in organic light-emitting diodes (OLEDs) and other optoelectronic devices to enhance light emission efficiency. In biological research, Coumarin 314 serves as a fluorescent marker for imaging and tracking cellular processes. It is also found in some analytical chemistry applications as a fluorophore in fluorescence spectroscopy for detecting and quantifying substances. Furthermore, its photostability and bright emission make it a valuable component in the development of sensors and probes for environmental and chemical analysis.