Used as an intermediate in the synthesis of pharmaceuticals and agrochemicals due to its reactive aldehyde and chelating hydroxyquinoline groups. Its ability to form stable complexes with metal ions makes it valuable in analytical chemistry for the detection and separation of metals such as aluminum, bismuth, and zinc. Also employed in the development of fluorescent probes and sensors, leveraging its inherent photophysical properties. Additionally, it serves as a building block in the preparation of biologically active compounds, including antimicrobial and antifungal agents.