CAS 846549-37-9 appears in our catalog under these names: N3-PEG(9)-COOH, 2–((Azido–PEG8–carbamoyl)methoxy)acetic acid, O-(2-Azidoethyl)-O-(2-(diglycoly-amino)ethyl)heptaethylene glycol, 2-((Azido-PEG8-carbamoyl)methoxy)acetic acid 95%, O-(2-AZIDOETHYL)-O'-(2-(DIGLYCOLYL-AMINO. Offered by: Iris Biotech, GLPBio, Biosynth, Ambeed, Sigma-Aldrich. Available pack sizes: 1g, 5g, 500mg, 250mg, 1000mg, 100mg, 500 mg, 250 mg.