Used as a chiral ligand in asymmetric catalysis, particularly in transition metal-catalyzed reactions where high enantioselectivity is required. Its rigid dinaphthyl backbone and stereogenic centers make it effective in promoting asymmetric transformations such as hydrogenation, C–C bond formation, and enantioselective synthesis of pharmaceutical intermediates. The bromine and iodine substituents allow for further functionalization or tuning of electronic properties. Commonly employed in research settings for developing enantiopure compounds in fine chemical and drug synthesis.