Used as a derivatization reagent in analytical chemistry, particularly for the detection and quantification of aliphatic and aromatic amines. It reacts selectively with primary amines to form highly colored or fluorescent Schiff bases, which can be easily detected using UV-Vis or fluorescence spectroscopy. This makes it valuable in high-performance liquid chromatography (HPLC) for enhancing the sensitivity of amine-containing compounds such as amino acids, neurotransmitters, and pharmaceuticals. Also employed in the development of chemosensors due to its strong electron-donating and photochemical properties, enabling colorimetric response to specific analytes. Its application extends to organic synthesis as an intermediate in the preparation of dyes and functionalized aromatic compounds.