Amino-PEG1-acid (NH2-PEG-COOH) (CAS: 144942-89-2) is a bifunctional molecule with amine and carboxylic acid groups. Its PEG1 spacer adds flexibility and water solubility, making it ideal for bioconjugation, surface modification, and polymer cross-linking.
Polyethylene Glycol PEG Linkers > Amino PEG > Amino-PEG-acid
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