Used as an intermediate in the synthesis of heterocyclic compounds, particularly in the preparation of pharmaceuticals and agrochemicals. Its hydrazine functionality allows it to participate in cyclization reactions, forming nitrogen-containing rings such as pyrazoles and triazoles, which are common scaffolds in bioactive molecules. It is also employed in the development of dyes and functional materials due to its ability to undergo condensation and coupling reactions. Its nitrile group offers additional reactivity for further chemical modifications, making it valuable in multi-step organic syntheses.