This chemical is widely utilized in bioconjugation and labeling applications due to its dual functional groups and fluorescent properties. The azide group enables click chemistry reactions, particularly with alkyne-containing molecules, making it valuable for site-specific labeling of biomolecules such as proteins, peptides, and nucleic acids. The amine group provides a reactive site for coupling with carboxyl groups or other amine-reactive probes, facilitating the creation of stable amide bonds. The PEG spacers enhance solubility and reduce steric hindrance, improving the efficiency of conjugation processes. The Cy5 fluorophore allows for fluorescence-based detection, imaging, and tracking in various biological assays, including fluorescence microscopy, flow cytometry, and in vivo imaging. This compound is particularly useful in studying molecular interactions, cellular processes, and drug delivery systems.