Azido-PEG3-aminoacetic acid-NHS ester is a heterobifunctional PEG linker with an azide specifically for click chemistry and an NHS ester for amine coupling. The PEG3 spacer improves solubility and flexibility, ideal for dual-functional bioconjugation and surface modification.
Polyethylene Glycol PEG Linkers > Azide PEG > Azido-PEG-aminoacetic acid-NHS ester
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