Used in organic synthesis as an intermediate for pharmaceuticals, particularly in the development of kinase inhibitors and other bioactive molecules. Its aromatic and heterocyclic structure makes it valuable in constructing complex drug candidates targeting inflammation, cancer, and central nervous system disorders. Commonly employed in cross-coupling reactions and condensation processes to build larger, functionalized molecules with high selectivity. Also utilized in the preparation of fluorescent probes due to its aldehyde functionality and conjugated system.