Used in organic synthesis as a key intermediate for pharmaceuticals and bioactive compounds. Serves as a building block in the preparation of nitrogen-containing heterocyclic systems, particularly quinoline derivatives with potential antimicrobial, antifungal, and antitumor activities. Employed in coordination chemistry as a ligand precursor for metal complexes exhibiting catalytic or biological properties. Also utilized in dye and pigment synthesis due to the aromatic quinoline framework contributing to light absorption characteristics.