m-PEG4-CH2-acid 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-PEG4-(CH2)6-Phosphonic acid is a polyethylene glycol-based linker compound, specifically designed for the synthesis of proteolysis targeting chimeras (PROTACs)[1].