CAS 208987-04-6 appears in our catalog under these names: m–PEG7–azide, m-PEG7-azide 98%, 2,5,8,11,14,17,20-Heptaoxadocosane, 22-azido-, 98%, 98%, m-PEG7-azide. Offered by: GLPBio, Ambeed, Chemat, MedChemExpress. Available pack sizes: 100mg, 250mg, 1g, 5g, 100 mg, 50 mg, 1 g, 25 mg.