Lumiprobe 水溶性CY3 NHS酯 Sulfo-Cyanine3 NHS ester
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Water soluble, amino-reactive sulfo-Cyanine3 NHS ester. Efficiently labels proteins and peptides in purely aqueous solution, without need for organic co-solvent. Ideal for proteins with low solubility, and proteins prone to denaturation.
This is sulfonated, hydrophilic and water-soluble dye. Non-sulfonated Cyanine3 NHS ester is also available.
This product is an analog of Cy3® NHS ester. Sulfo-Cyanine3 NHS ester replaces Cy3®, Alexa Fluor 546, and DyLight 549 for all applications.
| Cat. # | Quantity | Lead time |
| 11320 | 1 mg | in stock |
| 21320 | 5 mg | in stock |
| 41320 | 25 mg | in stock |
| 51320 | 50 mg | in stock |
| 61320 | 100 mg | in stock |
General properties
| Appearance: | dark red crystals |
| Molecular weight: | 751.91 |
| CAS number: | 1424150-38-8 (sodium salt); 1424433-17-9, 1518643-34-9 (inner salt) |
| Molecular formula: | C34H38N3KO10S2 |
| IUPAC name: | 3H-Indolium, 2-[3-(1,3-dihydro-1,3,3-trimethyl-5-sulfo-2H-indol-2-ylidene)-1-propen-1-yl]-1-[6-[(2,5-dioxo-1-pyrrolidinyl)oxy]-6-oxohexyl]-3,3-dimethyl-5-sulfo-, inner salt, sodium salt |
| Solubility: | soluble in water (0.62 M = 47 g/L), in polar organic solvents (DMF, DMSO) |
| Quality control: | NMR 1H, HPLC-MS (95%) |
| Storage conditions: | Storage: 12 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: | 548 |
| ε, L⋅mol−1⋅cm−1: | 162000 |
| Emission maximum, nm: | 563 |
| Fluorescence quantum yield: | 0.1 |
| CF260: | 0.03 |
| CF280: | 0.06 |
