Used as an intermediate in the synthesis of pharmaceuticals, particularly in the production of angiotensin II receptor antagonists like valsartan and related sartan-class drugs. It plays a key role in constructing the core structure of these antihypertensive agents. The nitrile and halogen groups allow further functionalization, enabling coupling reactions and ring formation essential in active pharmaceutical ingredient (API) manufacturing. Commonly employed in multi-step organic synthesis under controlled conditions due to its reactivity.