NH2-PEG-NH2 (MW 5000)

NH2-PEG-NH2 (MW:5000) is a polyethylene glycol derivative containing two primary amine groups. The amino group can react quickly with activated carboxylic acid or carboxyl groups such as NHS esters to form stable amide bonds. The PEGylation of NH2-PEG-NH2 can increase solubility and stability, and reduce the immunogenicity of peptides and proteins, so it is mostly used to modify proteins, peptides and other substances.