Bis-propargyl-PEG7 is a polyethylene glycol (PEG)-based linker utilized in the synthesis of proteolysis targeting chimeras (PROTACs). It is particularly employed for the synthesis of polymer-linked multimers of guanosine-3',5'-cyclic monophosphates[1].

Bis-propargyl-PEG6 can be used to synthesize the polymer linked multimers of guanosine-3', 5'-cyclic monophosphates which can be used as reagents for signal transduction research and as modulators of cyclic nucleotide-regulated binding proteins and isoenzymes thereof, and as ligands for affinity chromatography, for antibody production or for diagnostic applications e.g. on chip surfaces[1].