Cy3-PEG-NH2 (MW 1000)

Cy3-PEG1000-NH2 is a fluorescent amine-reactive reagent used for labeling biomolecules in vitro and in vivo. Its Cy3 dye, emitting at ~562-570 nm, enables applications in fluorescence microscopy, flow cytometry, and molecular tracing for immunolabeling and nucleic acid detection.