Used as a chiral building block in the synthesis of pharmaceuticals and fine chemicals. Its epoxide ring allows for selective ring-opening reactions, enabling the introduction of functional groups in a stereocontrolled manner. Commonly employed in the preparation of β-blockers and other bioactive molecules where the (R)-enantiomer is required for optimal activity. Also utilized in asymmetric synthesis and as a reagent in organic transformations involving nucleophilic attack at the less hindered carbon of the epoxide.