Used as a chiral auxiliary in asymmetric synthesis, particularly in the enantioselective preparation of pharmaceutical intermediates. Its rigid imidazolidinone structure facilitates high stereocontrol in aldol and alkylation reactions. Commonly employed in the synthesis of beta-amino acids and other bioactive molecules where stereochemistry is critical. The hydrochloride salt form enhances stability and solubility in polar solvents, making it suitable for use in various reaction conditions. Also applied in catalytic cycles involving organocatalysis, where it helps induce chirality without the need for metal catalysts.