CAS 2152679-71-3 appears in our catalog under these names: Azido-PEG12-acid/ 98.94% (existing batch purity), Azido–PEG12–acid, Azido-PEG12-acid 95%, Azido-PEG12-acid, 98%, 98%, Azido-PEG12-acid, 99.81%. Offered by: TargetMol, GLPBio, Ambeed, Chemat, MedChemExpress. Available pack sizes: 25mg, 50mg, 100mg, 250mg, 1g, 5g, 500mg, 250 mg.