m-PEG5-phosphonicacid is a PEG-based linker for PROTACs which joins two essential ligands, crucial for forming PROTAC molecules. This linker enables selective protein degradation by leveraging the ubiquitin-proteasome system within cells.
m-PEG5-phosphonicacid ethyl ester is a polyethylene glycol (PEG)-derived linker commonly employed in the construction of proteolysis targeting chimeras (PROTACs)[1].