N-(Azido-PEG3)-N-Fluorescein-PEG3-acid is a multifunctional PEG linker with azide, fluorescein, and carboxyl groups specifically for click chemistry, imaging, and amide conjugation.
Polyethylene Glycol PEG Linkers > PEG-X-PEG > PEG-Fluorescein-PEG
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