8-Arm PEG-NH2 (MW 5000)

8-Arm PEG-NH2 (MW 5000) [8-Arm PEG-Amine (MW 5000) ] is a multi-arm PEG derivative with amino groups at the end of each of its eight arms. The reactive primary amine (NH2) groups can swiftly react with activated carboxylic acids, such as NHS esters, to form stable amide bonds.