CAS 2752068-22-5 appears in our catalog under these names: 3-(2-(3-((2,5-Dioxopyrrolidin-1-yl)oxy)-3-oxopropoxy)ethoxy)propanoic acid, 95%, 95%, Acid-PEG2-NHS ester. Offered by: Chemat, MedChemExpress. Available pack sizes: 5g, 100mg, 250mg, 1g, Get quote.