Cy5.5-N3

Cy5.5-N3 is an azide-functionalized near-infrared fluorescent dye designed for bioorthogonal labeling via click chemistry, including CuAAC and SPAAC. It is widely used for in vitro and in vivo imaging applications, such as tracking biomolecules in live cells and small animal models, leveraging its deep tissue penetration and minimal background fluorescence.