Propargyl-PEG7-acid is a reagent with a propargyl group with a carboxylic acid. The carboxylic acid reacts with primary amines under the activation of EDC or HATU. The propargyl group can participate in azide-alkyne Click Chemistry reaction to form triazole linkage, copper is required as a catalyst. The PEG spacer increases the hydrophilicity of the molecule.
