Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of nicotinic receptor ligands and other bioactive molecules targeting neurological disorders. Its aldehyde and ester functional groups allow for versatile chemical modifications, enabling the construction of complex heterocyclic compounds. Commonly employed in medicinal chemistry for scaffold diversification and in the preparation of pyridine-based drug candidates. Also utilized in the synthesis of agrochemicals and functional materials where pyridine derivatives are required.