CAS 176220-30-7 appears in our catalog under these names: Boc-nhch2CH2-PEG1-azide, Boc-NHCH2CH2-PEG1-azide 98%, tert-Butyl (2-(2-azidoethoxy)ethyl)carbamate, 98%, 98%, Boc-NHCH2CH2-PEG1-azide, 98.0%, Boc-NHCH2CH2-PEG1-azide, 98%. Offered by: Biosynth, Ambeed, Chemat, MedChemExpress, Fluorochem. Available pack sizes: 5000mg, 10000mg, 250mg, 1g, 5g, 100mg, 500 mg, 1 g.