N,N-Bis(PEG2-propargyl)-N-4-oxo-butanoic acid is a PEG2-based linker with dual propargyl groups and a carboxylic acid. It supports click chemistry and amide coupling, making it especially valuable for probe design, drug delivery, and multifunctional bioconjugation.
Polyethylene Glycol PEG Linkers > Propargyl PEG > Branched Propargyl PEG
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