Cy3-PEG-SH (MW 10000)

Cy3-PEG-Thiol (MW 10,000) is a near-infrared fluorescent probe with an absorption maximum at 550 nm, designed for labeling biomolecules via its thiol-reactive terminus. Its PEG spacer enhances solubility and reduces non-specific binding, making it suitable for in vitro assays and in vivo imaging applications in bioconjugation research.