CAS 117136-33-1 appears in our catalog under these names: 3,4-Di-o-acetyl-6-o-(tert-butyldimethylsilyl)-d-glucal, 95%, (2R,3S,4R)-2-(((tert-Butyldimethylsilyl)oxy)methyl)-3,4-dihydro-2H-pyran-3,4-diyl diacetate, 95+%. Offered by: Combi-blocks, AmBeed. Available pack sizes: 250mg, 1g, 5g.