Used as a chiral ligand in asymmetric catalysis, particularly in transition-metal-catalyzed enantioselective reactions. It plays a key role in hydrogenation and cross-coupling reactions where high enantioselectivity is required. Its rigid dinaphthyl backbone and defined stereochemistry make it effective for inducing chirality in pharmaceutical intermediates and fine chemicals. Commonly employed with rhodium, ruthenium, or palladium complexes to achieve high asymmetric induction in the synthesis of bioactive molecules.