Cyanine 3 dye is a synthetic organic molecule that emits a bright orange-red fluorescence upon excitation with light in the near-infrared region. It is widely used as a labeling agent for biological molecules, such as proteins, DNA, and RNA.
Cyanine 3 dye allows for highly sensitive and specific detection in imaging and diagnostic applications. Additionally, it is often used in the development of biosensors, and other analytical tools for detecting and quantifying target analytes.