Widely used in analytical chemistry for the detection and quantification of primary amines, especially in amino acid analysis and protein sequencing. It reacts rapidly with primary amines under mild conditions to form highly fluorescent derivatives, enabling sensitive detection in HPLC and capillary electrophoresis. Commonly applied in pharmaceutical quality control, clinical diagnostics, and research laboratories for monitoring amino acids in biological fluids. Also utilized in the food industry to analyze amino acid content and assess protein hydrolysis. Its non-derivatized reagent is stable and easy to handle, making it suitable for automated systems.