Used as a derivatization reagent in analytical chemistry, particularly for the detection and quantification of amino acids and peptides in high-performance liquid chromatography (HPLC). It reacts selectively with primary amines to form highly fluorescent derivatives, enabling sensitive detection at low concentrations. Also applied in biochemical research to label and track amine-containing biomolecules due to its favorable fluorescence properties. Its hydrate form enhances stability and solubility in aqueous reaction mixtures, making it suitable for use in physiological and mild reaction conditions.