Cy5.5 NHS ester
| Cat. # | Quantity | Price | Stock
Stock items are shipped either today (for orders placed by 12AM EST), or tomorrow. Backordered items are typically shipped within 10 days. 
|
Buy this product |
|---|---|---|---|---|
| 17020 | 1 mg | 110.00$ | in stock | |
| 27020 | 5 mg | 210.00$ | in stock | |
| 47020 | 25 mg | 410.00$ | in stock | |
| 57020 | 50 mg | 695.00$ | in stock | |
| 67020 | 100 mg | 1190.00$ | in stock |
Cy5.5 NHS ester is a reactive dye for the labeling of amino-groups in peptides, proteins, and oligonucleotides.
Cy5.5 is a far-red (and near-infrared) emitting dye which is ideal for fluorescence measurements where background fluorescence is a concern. It is also suitable for in vivo imaging experiments.
This reagent can replace NHS esters of Alexa Fluor 680, and DyLight 680.
General properties
| Appearance: | dark blue powder |
| Molecular weight: | 716.31 |
| Molecular formula: | C44H46ClN3O4 |
| Solubility: | soluble in organic solvents (DMSO, DMF, dichloromethane), low solubility in water |
| Quality control: | NMR 1H (95%) and 13C, TLC, functional testing |
| 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. |
| MSDS: | Download |
Spectral properties
| Excitation maximum, nm: | 673 |
| Extinction coefficient at excitation maximum, Lmol-1cm-1: | 209000 |
| Emission maximum, nm: | 707 |
| Fluorescence quantum yield: | 0.2 |
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