Used as a chiral intermediate in the synthesis of pharmaceuticals, particularly in the production of beta-blockers and other cardiovascular drugs. Its enantiomerically pure structure makes it valuable for creating active pharmaceutical ingredients with high stereoselectivity. Commonly employed in asymmetric synthesis routes where the (S)-configuration is required for biological activity. Also utilized in the development of optically active esters and amines through selective transformations of the amino and ester functional groups.