This chemical is widely used in bioconjugation and drug delivery systems. It serves as a linker molecule, enabling the attachment of bioactive molecules to nanoparticles, proteins, or other carriers. Its PEG (polyethylene glycol) spacer enhances solubility and reduces immunogenicity, making it ideal for therapeutic applications. The t-Boc (tert-butoxycarbonyl) protecting group allows for controlled deprotection, facilitating selective reactions in complex synthesis processes. Additionally, the hydrazide group enables conjugation with aldehydes or ketones, making it valuable in the development of antibody-drug conjugates (ADCs) and targeted therapies. Its versatility and stability make it a key component in pharmaceutical research and biotechnological advancements.