Product Description
MAL-PEG-COOH is a linear heterobifunctional PEG reagent with a maleimide and a carboxylic acid. It is a useful crosslinking reagent with a PEG spacer. Maleimide reacts with thiol, SH, sulfhydryl or mercapto, and carboxyl group can react with amine or hydroxyl under standard acid/amine or acid/alcohol coupling conditions. Maleimide contains a reactive C=C double bond and is light or oxygen sensitive.