t-Boc-Aminooxy-PEG4-acid is a high-purity PEG linker with a Boc-protected aminooxy group for controlled carbonyl coupling and a carboxylic acid specifically for amide formation. The PEG4 spacer improves solubility and flexibility for especially efficient bioconjugation.
Polyethylene Glycol PEG Linkers > Aminooxy PEG > t-Boc-Aminooxy-PEG-acid
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