Methoxypolyethylene glycol thiol (mPEG-SH) from Advanced BioChemicals (ABC) are high quality PEG reagents that attach a reactive free thiol (SH) group at the terminal site, which can selectively reacts with maleimide and transition metal surface including gold, silver, etc. mPEG-SH can be easily air oxidized to form a dimer via a S-S disulfide bond, which can be reversed with reducing agents.
Advanced BioChemicals (ABC) offer mPEG-SH 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-SH products may be available by custom synthesis, please contact us at sales@advancedbiochemicals.com for a free quote.