Used as a protected ester intermediate in organic synthesis, particularly in pharmaceutical and agrochemical manufacturing. The tert-butyl group allows for selective deprotection under mild acidic conditions, making it valuable in multi-step syntheses where functional group compatibility is critical. The cyclopropane ring adds strain and rigidity, often exploited to influence the conformation and biological activity of target molecules. Commonly employed in the development of active pharmaceutical ingredients (APIs) and in the construction of complex cyclic structures.