CAS 1938057-43-2 appears in our catalog under these names: tert-butyl 3-[2-(2-iodoethoxy)ethoxy]propanoate 97%, TERT-BUTYL 3-(2-(2-IODOETHOXY)ETHOXY)PROPANOATE, 98%, tert-Butyl 3-(2-(2-iodoethoxy)ethoxy)propanoate, 98%, 98%, Boc-PEG2-I, 98.0%. Offered by: Ambeed, Fluorochem, Chemat, MedChemExpress. Available pack sizes: 250mg, 1g, 5g, 100mg, 5 g, 100 mg, 250 mg, 1 g.