Used primarily as a fluorescent labeling reagent in analytical chemistry, especially for the detection and derivatization of amines and amino acids in HPLC and capillary electrophoresis. Its high fluorescence quantum yield and selectivity toward primary amines make it ideal for sensitive detection in biological samples. Also employed in the synthesis of fluorescent sensors and probes for monitoring enzymatic activity and cellular imaging. Additionally, it serves as a building block in the preparation of heterocyclic compounds and functional materials with optoelectronic properties.