This compound is primarily utilized in the field of targeted protein degradation, specifically in the development of PROTACs (Proteolysis Targeting Chimeras). It serves as a key linker component, connecting the target protein-binding moiety to the E3 ubiquitin ligase recruiter. Its structure, featuring PEG2, allows for enhanced cellular permeability, solubility, and stability, making it effective in degrading disease-causing proteins, particularly in cancer research. Additionally, it is employed in biochemical studies to investigate protein-protein interactions and cellular signaling pathways, aiding in the discovery of novel therapeutic strategies.