(S)-(-)-2,2'-Bis(diphenylphosphino)-1,1'-binaphthyl

(S)-(-)-2,2'-Bis(diphenylphosphino)-1,1'-binaphthyl, commonly known as (S)-BINAP, is an important chiral reagent used in the field of asymmetric synthesis in pharmaceutical manufacturing. It serves as a ligand in enantioselective catalysis, particularly in processes involving hydrogenation and carbon-carbon bond formation.