Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of kinase inhibitors and antiviral agents. Its hydrazine functionality allows for coupling reactions with carbonyl compounds, enabling the formation of hydrazones that serve as building blocks in drug design. Also employed in agrochemical synthesis for creating novel active ingredients with improved stability and reactivity. The tetrahydropyran ring enhances solubility and metabolic stability in final compounds, making it valuable in medicinal chemistry optimization.