Used as an intermediate in the synthesis of pharmaceutical compounds, particularly in the development of kinase inhibitors and other bioactive molecules. Its structure supports the formation of hydrazide bonds, making it valuable in peptide-like coupling reactions and heterocycle construction. Commonly employed in medicinal chemistry for modifying pyridine-containing scaffolds to enhance biological activity or solubility. Also utilized in research settings for labeling and conjugation strategies due to the reactivity of the carbonyl hydrazide group.