Used primarily as a derivatization agent in analytical chemistry, especially for the detection and quantification of primary amines and amino acids. Its high reactivity toward primary amines allows it to form highly fluorescent and stable derivatives, making it valuable in high-performance liquid chromatography (HPLC) and capillary electrophoresis. It is particularly effective in biological and environmental samples where sensitive detection of trace amines is required. Due to its selectivity for primary amines over secondary amines and other functional groups, it enables cleaner analysis with fewer interferences. Also employed in the development of sensors and assays for neurotransmitters and other biologically relevant amine-containing compounds.