CAS 89485-61-0 appears in our catalog under these names: Methoxypolyethylene glycol azide, MeO-PEG(24)-N3, MeO-PEG(36)-N3, m-dPEG®,36-Azide (Azido-m-dPEG®,36), m-dPEG®,12-Azide (Azido-m-dPEG®,12). Offered by: GLPBio, Iris Biotech, Biosynth, Sigma-Aldrich, Fluorochem. Available pack sizes: 250mg, 1g, 100mg, 1000mg.