2-(Biotin-amido)-13-bis(carboxylethoxy)propane is a polyethylene glycol (PEG)-based PROteolysis TArgeting Chimera (PROTAC) linker utilized in the synthesis of PROTACs[1].
Bis-Tos-PEG6 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.