Bis (m-PEG4) -N-OH

Bis (m-PEG4) -N-OH is a flexible PEG-based linker used to construct PROTAC molecules for targeted protein degradation. It connects an E3 ligase ligand to a protein-of-interest ligand, enabling the study of protein function via the ubiquitin-proteasome system in both cellular and in vivo research models.