Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of antimalarial and antibacterial agents. Its structure supports the formation of quinoline-based bioactive molecules, which are important in medicinal chemistry. Also employed in research for the preparation of fluorescent dyes and sensors due to its electron-withdrawing nitrile group and hydroxyl functionality, enabling conjugation and coordination with metal ions. Shows potential in materials science for designing organic semiconductors and optoelectronic devices.