Used extensively in bioconjugation processes, it serves as a linker molecule to attach various biomolecules, such as proteins, peptides, and antibodies, to other entities like drugs, dyes, or solid supports. Its PEG (polyethylene glycol) spacer enhances solubility and reduces steric hindrance, making it ideal for creating stable conjugates in drug delivery systems and diagnostic assays. Additionally, it is employed in surface modification to improve biocompatibility and reduce non-specific binding in biomedical applications. Its isothiocyanate group reacts efficiently with primary amines, enabling precise and controlled conjugation in research and therapeutic development.