CAS 7747-35-5 appears in our catalog under these names: 5-ETHYL-1-AZA-3,7-DIOXABICYCLO(3.3.0)- &, Oxazolidine E, Oxaban E 98%, 5-Ethyl-1-aza-3,7-dioxabicyclo[3.3.0]oct, 7a-Ethyltetrahydro-1H-oxazolo[3,4-c]oxazole, 98%, 98%. Offered by: Sigma-Aldrich, Dr. Ehrenstorfer, Ambeed, Chemat, Fluorochem. Available pack sizes: 250ML, 1ml, 1g, 5g, 10g, 25g, 100g, 100MG.