Used primarily as a fluorescent labeling reagent in biochemistry and molecular biology for the detection and quantification of amino acids, peptides, and proteins. It reacts with primary amines to form highly fluorescent derivatives, making it valuable in high-performance liquid chromatography (HPLC) for analyzing complex biological samples. Additionally, it is employed in the study of enzyme kinetics and protein structure, aiding in the understanding of biochemical pathways. Its sensitivity and specificity make it a crucial tool in proteomics research and diagnostics.