CAS 1287660-83-6 appears in our catalog under these names: Propargyl–PEG5–Br, Propargyl-PEG5-Br 98%, 1-Bromo-3,6,9,12,15-pentaoxaoctadec-17-yne, 96%, 96%, Propargyl-PEG5-Br, 96.57%, Propargyl-PEG5-Br, 96%. Offered by: GLPBio, Ambeed, Chemat, MedChemExpress, Fluorochem. Available pack sizes: 1g, 250mg, 500mg, 100mg, 5g, 1 g, 250 mg, 100 mg.