CAS 149646-83-3 appears in our catalog under these names: (R,R)-Chiraphite, (R,R)-Chiraphite 98%, (+)-6,6'-{[(1R,3R)-1,3-Dimethyl-1,3-propanediyl]bis(oxy)}bis[4,8-bis(t-butyl)-2,10-dimethoxy-bibenzo[d,f][1,3,2]dioxaphosphepin], 98%, 98%, (R,R)-Chiraphite, 97%. Offered by: Biosynth, Ambeed, Chemat, Fluorochem. Available pack sizes: 250mg, 500mg, 1000mg, 50mg, 100mg, 1g, 5g.