Used as a chiral catalyst or ligand in asymmetric synthesis, particularly in enantioselective transformations where high stereocontrol is required. Its rigid dinaphthyl backbone and defined stereochemistry make it effective in promoting asymmetric induction in reactions such as hydrogenations, carbon-carbon bond formations, and other catalytic processes. The presence of iodine atoms allows for potential further functionalization or use in coupling reactions. Commonly employed in advanced organic synthesis, including pharmaceutical and fine chemical manufacturing, where precise chirality is critical.