CAS 1349099-55-3 appears in our catalog under these names: 4-Arm-PEG-Maleimide (MW 5000), 4-Arm-PEG-Maleimide (MW 10000), 4-Arm-PEG-Maleimide (MW 20000), 4-Arm-PEG-Maleimide (MW 40000), 4-Arm-PEG-Maleimide (MW 400). Offered by: MedChemExpress. Available pack sizes: Get quote.