CAS 1951439-37-4 appears in our catalog under these names: Bromo–PEG4–azide, Bromo-PEG4-azide, Bromo-PEG4-azide 97%, Bromo-PEG4-azide, 98%, 98%, Bromo-PEG4-azide, 99.63%. Offered by: GLPBio, Biosynth, Ambeed, Chemat, MedChemExpress. Available pack sizes: 250mg, 500mg, 1g, 5g, 100mg, 10g, 25g, 250 mg.