CAS 2839118-68-0 appears in our catalog under these names: Boc-NH-PEG24-CH2CH2COOH 95%, Boc-NH-PEG24-CH2CH2COOH, 96.0%, 2,2-Dimethyl-4-oxo-3,8,11,14,17,20,23,26,29,32,35,38,41,44,47,50,53,56,59,62,65,68,71,74,77-pentacosaoxa-5-azaoctacontan-80-oic Acid, 95%, 95%, Boc-NH-PEG24-CH2CH2COOH, 98%. Offered by: Ambeed, MedChemExpress, Chemat, Fluorochem. Available pack sizes: 50mg, 100mg, 250mg, 1g, 100 mg, 50 mg, 25 mg, 5g.