CAS 139139-93-8 appears in our catalog under these names: (S)-H8-BINAP 98%, (S)-H8-BINAP, TECHNICAL GRADE, (S)-(-)-2,2'-Bis(diphenylphosphino)-5,5',6,6',7,7',8,8'-octahydro-1,1'-binaphthyl, 98%, 98%, (S)-(-)-2,2'-BIS(DIPHENYLPHOSPHINO)-5,5',6,6',7,7',8,8'-OCTAHYDRO-1,1'-BINAPHTHYL, 95%. Offered by: Ambeed, Sigma-Aldrich, Chemat, Fluorochem. Available pack sizes: 100mg, 250mg, 1g, 5g, 50MG.