8-Arm PEG-NH2 HCL (MW 40000)

8-Arm PEG-NH2 (MW 40000) (8-Arm PEG-Amine (MW 40000) ) HCL is a multi-arm PEG derivative featuring amino groups at the end of each of its eight arms. The reactive primary amine or NH2 groups can rapidly react with activated carboxylic acids (such as NHS esters) to form stable amide bonds.