Used as an intermediate in the synthesis of pharmaceuticals, particularly in the development of angiotensin II receptor antagonists for treating hypertension. It plays a key role in constructing complex molecules due to the presence of both amine and chloro-substituted biphenyl groups, which are common structural motifs in bioactive compounds. Its hydrochloride salt form enhances stability and solubility during synthetic processes. Also utilized in research for developing new cardiovascular drugs and in medicinal chemistry for structure-activity relationship studies.