Used in bioconjugation and chemical biology, this compound facilitates the attachment of biomolecules, such as proteins or peptides, to other entities like polymers or surfaces. Its PEG7 spacer enhances solubility and reduces steric hindrance, making it ideal for creating stable conjugates. The t-Boc protecting group allows selective deprotection for controlled reactions, while the bromide moiety enables nucleophilic substitution for covalent bonding. Commonly applied in drug delivery systems, diagnostics, and therapeutic agent development.