Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the production of vasodilator drugs and calcium channel blockers. It plays an important role in organic synthesis due to the presence of reactive functional groups—the nitrile and chloro-substituted aromatic ring—which allow for further chemical modifications. Commonly employed in the preparation of substituted phenethylamines and heterocyclic compounds. Its derivatives are explored in medicinal chemistry for cardiovascular treatments and neurological applications. Also utilized in research settings for developing novel bioactive molecules.