CAS 2141976-23-8 appears in our catalog under these names: SCO-PEG2-Maleimide, >95.0%(HPLC), Cyclooct-2-yn-1-yl (2-(2-(2-(3-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)propanamido)ethoxy)ethoxy)ethyl)carbamate, 95.0%, 95.0%, SCO-PEG2-Maleimide. Offered by: TCI, Chemat, MedChemExpress. Available pack sizes: 5mg, 25mg, Get quote.