CAS 2579693-28-8 appears in our catalog under these names: Methyl-PEG24-Maleimide, >93.0%(HPLC), m-PEG24-Mal 98%, 3-(2,5-Dioxo-2,5-dihydro-1H-pyrrol-1-yl)-N-(2,5,8,11,14,17,20,23,26,29,32,35,38,41,44,47,50,53,56,59,62,65,68,71-tetracosaoxatriheptacontan-73-yl)propanamide, 98%, 98%, m-PEG24-Mal, 96.08%. Offered by: TCI, Ambeed, Chemat, MedChemExpress. Available pack sizes: 25mg, 50mg, 100mg, 250mg, 100 mg, 50 mg.