CAS 2680525-48-6 appears in our catalog under these names: Br-PEG4-acid 98%, 14-Bromo-3,6,9,12-tetraoxatetradecanoic acid, 98%, 98%, Br-PEG4-acid, Br-PEG4-acid, 98%. Offered by: Ambeed, Chemat, MedChemExpress, Fluorochem. Available pack sizes: 100mg, 250mg, 1g, 5g, 250 mg, 50 mg, 100 mg, 25 mg.