Amine-PEG-Maleimide (NH2-PEG-MAL) from Advanced BioChemicals (ABC) are high quality linear heterobifunctional PEG derivatives with one amino group and one maleimide group, which can be used as crosslinkers or spacers between two different chemical reagents. Maleimide group can selectively react with thiol groups at pH 5.0-6.5 and amino group can quickly react with carboxyl or activated NHS ester. The HCl salt form provides stability for the solid form of NH2-PEG-MAL.
Advanced BioChemicals (ABC) offer NH2-PEG-MAL with MW 2kDa, MW 3.5 kDa, MW 5kDa, MW 10kDa and MW 20kDa, in 100mg, 500mg, 1g and 5g packing sizes. Different MW of NH2-PEG-MAL products may be available by custom synthesis, please contact us at sales@advancedbiochemicals.com for a free quote.