AF 594 NHS ester
Cat. # | Quantity | Price | Lead time | Buy this product |
---|---|---|---|---|
2825-1mg | 1 mg | $125 | 5 days | |
2825-5mg | 5 mg |
$425
|
in stock | |
2825-25mg | 25 mg |
$1240
|
in stock | |
2825-50mg | 50 mg |
$1890
|
in stock | |
2825-100mg | 100 mg |
$2640
|
in stock |
AF 594 is a bright water-soluble dye that is not sensitive to pH changes within the range from 4 to 10. This red-fluorescent dye is commonly used for flow cytometry and fluorescent microscopy.
AF 594 NHS ester is used for labeling proteins, peptides, antibodies, and any molecules containing an -NH2 group (such as amino-modified oligonucleotides); it results in the formation of stable amide bonds between the dye and the target molecule. The best result in conjugation reaction achieved at pH from 7 to 9.
AF 594 can be used for protein labeling with a high molar dye-to-protein ratio. The resulting conjugates with a high degree of labeling (DOL) do not exhibit significant fluorescence quenching. In contrast, the conjugates have brighter fluorescence, which allows increasing the lowest limit of detection of the labeled product.
AF 594 absorbance and emission spectra

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AF 594 conjugate of streptavidin, a high-affinity biotin-binding protein, for immunofluorescence, western blots, microplate assays, and other applications use.Cyanine5.5 dimethyl
Non-functionalized Сyanine5.5 dye derivative with good solubility in organic solvents and bright fluorescence in the far-red spectrum range.Alkyne hydrazide
Bifunctional reagent containing alkyne group and hydrazide function. It reacts with aldehydes and ketones. Alkyne group can then be coupled with various azides via CuAAC reaction.General properties
Appearance: | dark-blue crystals |
Molecular weight: | 1022.23 |
CAS number: | 1638544-48-5 |
Molecular formula: | C51H67N5O13S2 |
IUPAC name: | 5-(((2,5-dioxopyrrolidin-1-yl)oxy)carbonyl)-2-(1,2,2,10,10,11-hexamethyl-4,8-bis(sulfonatomethyl)-10,11-dihydro-2H-pyrano[3,2-g:5,6-g']diquinolin-1-ium-6-yl)benzoate |
Solubility: | soluble in water, DMSO, DMF |
Quality control: | NMR 1H (95%), HPLC-MS (80%) |
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. |
MSDS: | Download |
Product specifications |
Spectral properties
Excitation/absorption maximum, nm: | 586 |
ε, L⋅mol−1⋅cm−1: | 105000 |
Emission maximum, nm: | 613 |
Fluorescence quantum yield: | 0.77 |
CF260: | 0.28 |
CF280: | 0.51 |
Product citations
- Kislova, A. V.; Zheglo, D.; Pozhitnova, V. O.; Sviridov, P. S.; Gadzhieva, E. P.; Voronina, E. S. Replication Stress Causes Delayed Mitotic Entry and Chromosome 12 Fragility at the ANKS1B Large Neuronal Gene in Human Induced Pluripotent Stem Cells. Chromosome Research, 2023, 31(3), 23. doi: 10.1007/s10577-023-09729-5
