Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the production of dyes and fluorescent compounds. It serves in the development of heterocyclic compounds due to its reactive aldehyde and amine functional groups. Commonly employed in analytical chemistry for detecting specific amino acids and peptides through chromogenic reactions. Also utilized in the preparation of Schiff bases, which have applications in coordination chemistry and as ligands in catalysis. Its derivatives are explored in agrochemicals and in the formulation of certain photochromic materials.