Used as a chiral building block in the synthesis of pharmaceuticals and biologically active compounds. Its rigid cyclobutane backbone and defined stereochemistry make it valuable for developing enantioselective drugs, particularly in the design of enzyme inhibitors and receptor modulators. Commonly employed in asymmetric synthesis to introduce structural complexity and control stereochemistry in advanced intermediates. Also utilized in the preparation of specialty polymers and ligands for catalysis where steric and electronic properties are critical.