Used as a key intermediate in the synthesis of angiotensin II receptor antagonists, particularly in the production of antihypertensive drugs like valsartan and related sartan-class medications. Its structure enables the formation of biaryl systems essential for the biological activity of these drugs. Commonly employed in pharmaceutical research and development for constructing complex molecules with cardiovascular therapeutic effects. Also utilized in organic synthesis for building blocks where cyano and carboxylic acid functionalities are needed for further derivatization.