CAS 2688072-13-9 appears in our catalog under these names: Br-PEG6-C2-NHBoc 95%, tert-Butyl (20-bromo-3,6,9,12,15,18-hexaoxaicosyl)carbamate, 98%, 98%, Br-PEG6-C2-NHBoc, 98.0%, Br-PEG6-C2-NHBoc, 98%. Offered by: Ambeed, Chemat, MedChemExpress, Fluorochem. Available pack sizes: 100mg, 250mg, 1g, 5g, 250 mg, 5 g, 1 g, 100 mg.