Used primarily in organic synthesis as a building block for more complex molecules. It serves as a key intermediate in the production of pharmaceuticals, agrochemicals, and specialty chemicals. Its bromine and nitrile functional groups make it valuable for reactions like nucleophilic substitution and cyanation processes. Commonly employed in the synthesis of heterocyclic compounds, which are important in drug development. Also utilized in polymer chemistry for modifying polymer chains to achieve specific properties. Handled with care due to its reactivity and potential toxicity.