Used primarily as an intermediate in organic synthesis, particularly in the preparation of pharmaceuticals and bioactive compounds. Its hydrazine functionality makes it valuable in the formation of heterocyclic structures such as pyrazoles and indoles, which are common scaffolds in drug development. It also serves as a reagent in the synthesis of hydrazones, useful in medicinal chemistry for their biological activity and as building blocks in condensation reactions. Additionally, it finds use in research settings for modifying functional groups in complex molecules due to its selective reactivity and stability as a salt form.