This compound is primarily utilized in the field of targeted protein degradation, particularly in the development of PROTACs (Proteolysis Targeting Chimeras). Its structure allows it to act as a linker, connecting a target protein-binding moiety to an E3 ubiquitin ligase recruiter. This facilitates the selective degradation of disease-causing proteins, making it valuable in cancer research and the treatment of various diseases. Additionally, its PEG4 spacer enhances solubility and bioavailability, improving its effectiveness in biological systems. It is also employed in chemical biology studies to explore protein function and interactions.