Used as a chiral ruthenium-based catalyst in asymmetric transfer hydrogenation reactions, particularly for the reduction of ketones and imines to produce enantiomerically enriched alcohols and amines. Exhibits high selectivity and efficiency in both aqueous and organic media, making it valuable in pharmaceutical synthesis where stereochemical control is critical. Commonly employed with hydrogen donors like formic acid or isopropanol, it enables mild, safe, and scalable catalytic processes.