Used as a chiral ligand in asymmetric catalysis, particularly in transition metal-catalyzed reactions such as asymmetric hydrogenation and cross-coupling reactions. Its sterically bulky dicyclohexylphosphino group and chiral sulfinamide moiety enhance enantioselectivity, making it valuable in the synthesis of enantiomerically pure pharmaceuticals and fine chemicals. Commonly employed in palladium- and rhodium-complexed catalysts for forming chiral centers with high optical purity.