Used as a fluorescent labeling reagent in analytical chemistry, particularly for the detection and quantification of primary and secondary amines in biological samples. It reacts selectively with amino groups under mild conditions, forming highly fluorescent derivatives that can be easily detected by HPLC or spectrofluorometry. Commonly applied in the analysis of amino acids, peptides, and neurotransmitters in pharmaceutical and biomedical research. Also utilized in environmental testing to trace amine-containing pollutants. Its high sensitivity and stability of the resulting adducts make it valuable in high-throughput screening and metabolic studies.