Used primarily as an intermediate in the synthesis of pharmaceuticals and agrochemicals. Its structure allows for selective functionalization, making it valuable in constructing nitrogen-containing heterocyclic compounds. It is employed in the development of kinase inhibitors and other bioactive molecules due to its ability to participate in cross-coupling reactions and condensation processes. Also utilized in the preparation of fluorescent probes and sensors, where the aldehyde group enables conjugation with amines to form Schiff bases, useful in imaging and detection applications.