CAS 161265-03-8 appears in our catalog under these names: Xantphos, 1,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenyl-phosphine, 4,5-Bis(diphenylphosphino)-9,9-dimethylxanthene, 97% , (9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(diphenylphosphine), 97.50%, 9,9-Dimethyl-4,5-bis(diphenylphosphino)xanthene. Offered by: Chemat Brand, TRC, TargetMol, Thermo Scientific (Alfa Aesar), Chemat. Available pack sizes: on request, 1g, 25g, 5g, 100mg, 10g, 0,25kg, 0,1kg.