This chemical is primarily used in bioconjugation and click chemistry applications. It serves as a linker molecule for attaching biomolecules, such as peptides, proteins, or nucleic acids, to other functional groups or surfaces. The presence of PEG (polyethylene glycol) spacers enhances solubility and reduces steric hindrance, making it suitable for creating stable and biocompatible conjugates. Its propargyl groups enable efficient and selective reactions with azides via copper-catalyzed azide-alkyne cycloaddition (CuAAC), a widely used click chemistry method. This makes it valuable in drug delivery systems, diagnostic assays, and the development of biomaterials.