CAS 2118959-55-8 appears in our catalog under these names: Ephos, 97%, Dicyclohexyl(3-isopropoxy-2',4',6'-triisopropyl-[1,1'-biphenyl]-2-yl)phosphine, 97%, Dicyclohexyl(3-isopropoxy-2',4',6'-triisopropyl-[1,1'-biphenyl]-2-yl)phosphine, 98%, Ephos, >=98%, ISOM8(TM). Offered by: Ambeed, BLDpharm, Fluorochem, Sigma-Aldrich, Chemat. Available pack sizes: 250mg, 1g, 5g, 100mg, 25g, 10g.