Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of kinase inhibitors and other bioactive molecules. Its functional groups allow for easy modification and coupling reactions, making it valuable in medicinal chemistry for constructing heterocyclic compounds. Also employed in the preparation of ligands for metal-catalyzed reactions, aiding in the formation of complex organic structures. Its aldehyde and carboxylic acid moieties enable dual reactivity, useful in multistep organic syntheses and drug discovery research.