CAS 94790-37-1 appears in our catalog under these names: HBTU, >95% (HPLC), HBTU, O-(1H-Benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafl, HBTU Reagent, O-(Benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate, 98%. Offered by: TRC, GLPBio, Iris Biotech, Thermo Scientific (Alfa Aesar), Biosynth. Available pack sizes: 1g, 5g, 100g, 1kg, 25g, 2kg, 500g, 5kg.