Benzyl-PEG5-NHBoc is widely used in the field of bioconjugation and drug delivery due to its unique properties. The benzyl group provides protection during chemical synthesis, while the PEG (polyethylene glycol) spacer enhances solubility and reduces immunogenicity, making it ideal for modifying peptides, proteins, and other biomolecules. The NHBoc (tert-butyloxycarbonyl) group serves as a protective group for amines, allowing selective deprotection in multi-step organic syntheses. This compound is particularly valuable in the development of targeted therapies, where it helps in creating stable and biocompatible conjugates. Additionally, it is employed in the preparation of prodrugs and in the modification of surfaces for biomedical applications, such as in the development of biosensors or drug-eluting implants. Its versatility makes it a key reagent in pharmaceutical research and biotechnology.