Used as an intermediate in the synthesis of pharmaceuticals, particularly in the production of active pharmaceutical ingredients (APIs) involving heterocyclic compounds. It serves as a building block in the development of dyes and fluorescent probes due to its aromatic aldehyde functionality and amine group, which facilitate conjugation and signal detection in biochemical assays. Also employed in the preparation of Schiff bases and imines for use in organic synthesis and coordination chemistry. Its structure supports applications in the development of sensors and optoelectronic materials.