Cyanine5 maleimide
| Cat. # | Quantity | Price |
| 13080 | 1mg | 1760.00 |
| 23080 | 5mg | 3360.00 |
| 43080 | 25mg | 6560.00 |
| 53080 | 50mg | 11120.00
|
| 63080 | 100mg | 17600.00
|
Cyanine5 maleimide is a mono-reactive dye which selectively couples with thiol groups (for example, with cysteines in peptides and proteins) to give labeled conjugates.
Cyanine5 is an analog of Cy5®, a common fluorophore which is compatible with various instrumentation like microscopes, imagers, and fluorescence readers.
For the labeling of antibodies and sensitive proteins we recommend to use the water soluble sulfo-Cyanine5 maleimide.
General properties
| Appearance: | dark blue powder |
| Molecular weight: | 641.24 |
| Molecular formula: | C38H45ClN4O3 |
| Solubility: | soluble in organic solvents (DMF, DMSO, dichloromethane), insoluble in water |
| 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. |
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Spectral properties
| Excitation maximum, nm: | 646 |
| ε, L⋅mol−1⋅cm−1: | 250000 |
| Emission maximum, nm: | 662 |
| Fluorescence quantum yield: | 0.2 |
