t-Boc-aminooxy-PEG2-propargyl is a click chemistry crosslinker. The propargyl group is reactive with azide-bearing compounds or biomolecules via copper catalyzed Click Chemistry to yield a stable triazole linkage. t-Boc-aminooxy can be deprotected under mild acidic conditions. The hydrophilic PEG spacer increases solubility in aqueous media.
