Cy3-PEG-Thiol

Cy3-PEG-Thiol is a near-infrared fluorescent probe designed for molecular conjugation, featuring a Cy3 dye, a PEG spacer, and a terminal thiol group. It is widely used for labeling proteins, antibodies, and nanoparticles in both in vitro assays and in vivo imaging studies due to its high solubility and efficient conjugation.