Cy3-PEG-SH (MW 5000)

Cy3-PEG-SH (MW 5000) is a fluorescent labeling reagent composed of Cy3 fluorescent dye, polyethylene glycol (PEG), and a thiol group (SH), suitable for molecular conjugation. The SH group is highly reactive and can form stable thioether bonds by reacting with various functional groups such as maleimide.