This chemical is widely used in bioconjugation and molecular biology research due to its unique properties. The PEG (polyethylene glycol) spacer provides flexibility and solubility, while the biotin groups enable strong binding to avidin or streptavidin. It is commonly employed in the development of biosensors, where it serves as a linker to attach biotinylated molecules to surfaces or other components. Additionally, it is utilized in affinity purification processes, allowing for the isolation of specific proteins or biomolecules. Its application extends to drug delivery systems, where it helps in targeting and binding to specific cells or tissues. The compound is also used in diagnostic assays, enhancing the sensitivity and specificity of detection methods. Overall, it plays a crucial role in advancing biomedical research and therapeutic development.