Cyanine3 amine is a functionalized cyanine dye containing a free amino group. Cyanine3 is an analog of Cy3®.
Amino group of this reagent can be conjugated with reactive groups such as NHS esters, carboxy groups (after carbodiimide activation), and epoxides.
The amino dye is supplied in salt form, and possesses some aqueous solubility.
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General properties
| Appearance: | red powder | 
| Molecular weight: | 627.73 | 
| Molecular formula: | C36H52Cl2N4O | 
| Solubility: | moderate solubility in water, good in polar organic solvents (DMF, DMSO, alcohols) | 
| Quality control: | NMR 1H, HPLC-MS (95%) | 
| Storage conditions: | Storage: 24 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Avoid prolonged exposure to light. Desiccate. | 
  Spectral properties
| Excitation maximum, nm: | 555 | 
| ε, L⋅mol−1⋅cm−1: | 150000 | 
| Emission maximum, nm: | 570 | 
| Fluorescence quantum yield: | 0.31 | 
| CF260: | 0.04 | 
| CF280: | 0.09 |