Cyanine Dyes

Cyanine dyes are high-performance fluorescent chromophores consisting of conjugated polymethine chains, enabling strong absorption and emission over a broad wavelength range

• Optical Properties: Absorption extending into the near-infrared (NIR) region, high molar absorptivity, and strong fluorescence signals.
• Advantages: Low background noise, high photostability, and an excellent signal-to-noise ratio in biological environments.
• Surface Functionality: Can be functionalized with groups such as carboxyl, NHS ester, or maleimide, making them suitable for labeling applications.
• Applications: Molecular labeling, DNA/RNA probe design, cell imaging, and optical sensor systems.