Methoxypolyethylene glycol maleimide (mPEG-MAL) from Advanced BioChemicals (ABC) are high quality PEG reagents that attach a reactive maleimide group at the terminal site, which can selectively react with thiol group at pH 5-6 via a Michale addition reaction to form a stable C-S covalent bond.
Advanced BioChemicals (ABC) offer mPEG-MAL with MW 2kDa, MW 3.5 kDa, MW 5kDa, MW 10kDa, MW 20kDa and MW 40kDa, in 1g, 5g and 10g packing sizes. Different MW of mPEG-MAL products may be available by custom synthesis, please contact us at sales@advancedbiochemicals.com for a free quote.