TAMRA-PEG3-biotin is widely used in biochemical and biotechnological research as a versatile labeling and detection tool. Its dual functionality, combining the fluorescent TAMRA dye with biotin, makes it ideal for applications such as fluorescence microscopy, flow cytometry, and immunoassays. The biotin moiety allows for strong binding to avidin or streptavidin, enabling precise targeting and immobilization of biomolecules. The PEG3 spacer enhances solubility and reduces steric hindrance, improving binding efficiency. This compound is particularly useful in studying protein-protein interactions, cellular imaging, and the development of diagnostic assays, where both fluorescence detection and high-affinity binding are required.