CAS 880129-82-8 appears in our catalog under these names: Azido–PEG6–CH2COOH, 20-Azido-3,6,9,12,15,18-hexaoxaicosanoic acid, Azido-PEG6-CH2COOH 98%, N3-PEG6-CH2COOH, 98%, 98%, Azido-PEG6-CH2COOH, 98.0%. Offered by: GLPBio, Biosynth, Ambeed, Chemat, MedChemExpress. Available pack sizes: 250mg, 50mg, 100mg, 1000mg, 500mg, 1g, 5g, 500 mg.