AF 647 NHS ester
| Cat. # | Quantity | Price | Lead time | Buy this product |
|---|---|---|---|---|
| 16820 | 1 mg |
$93.99
|
in stock | |
| 26820 | 5 mg |
$279.90
|
in stock | |
| 46820 | 25 mg |
$859.90
|
in stock | |
| 56820 | 50 mg |
$1590.00
|
in stock | |
| 66820 | 100 mg |
$2640.00
|
in stock |
AF 647 NHS ester is a bright, far-red fluorescent dye, used for cellular visualization and labeling of antibodies, peptides, proteins, modified oligonucleotides, and other amine-containing molecules.
Due to the lack of significant self-quenching AF 647 dye molecules can be conjugated to proteins at high molar ratios, resulting in the sensitive detection of low-abundance biomolecules potential.
AF 647 NHS ester dye possesses high water-solubility and high fluorescence quantum yield; it is pH-insensitive over a wide molar range. Widely applied for imaging and flow cytometry.
Absorption and emission spectra of AF 647
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General properties
| Appearance: | dark violet solid |
| Molecular weight: | 1056.33 |
| Molecular formula: | C39H44N3K3O16S4 |
| IUPAC name: | 2-((1E,3E)-5-((E)-3,3-dimethyl-5-sulfonato-1-(3-sulfonatopropyl)indolin-2-ylidene)penta-1,3-dien-1-yl)-3-(5-((2,5-dioxopyrrolidin-1-yl)oxy)-5-oxopentyl)-3-methyl-1-(3-sulfonatopropyl)-3H-indol-1-ium-5-sulfonate |
| Solubility: | good in water, DMSO |
| Quality control: | NMR 1H, HPLC-MS (90%) |
| Storage conditions: | 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: | 655 |
| ε, L⋅mol−1⋅cm−1: | 191800 |
| Emission maximum, nm: | 680 |
| Fluorescence quantum yield: | 0.15 |
| CF260: | 0.09 |
| CF280: | 0.08 |
Product citations
- Tian, S.; Nguyen, H.; Ye, Z.; Rouskin, S.; Thirumalai, D.; Trcek, T. Controlling Intermolecular Base Pairing in Drosophila Germ Granules by mRNA Folding and Its Implications in Fly Development. Nat Commun, 2025, 16(1), 8135. doi: 10.1038/s41467-025-62973-7
- Jan, I.; Cearlock, A.; Yang, M.; Allbritton, N. L. Development of Large-Scale Gastruloid Array to Identify Aberrant Developmental Phenotypes. APL Bioeng., 2025, 9(2), 026121. doi: 10.1063/5.0269550
- Simpson, G. G.; Quintana, J. M.; Carrothers, J. E.; Jiang, F.; Walker, S. A.; Cho, C.; Weissleder, R.; Miller, M. A.; Ng, T. S. C. Fluorescent PSMA-Targeted Radiotheranostic Compounds for Multiscale Imaging. Bioconjugate Chem., 2025, 36(7), 1448–1460. doi: 10.1021/acs.bioconjchem.5c00139
- Armstrong, M. C.; Weiß, Y. R.; Hoachlander-Hobby, L. E.; Roy, A. A.; Visco, I.; Moe, A.; Golding, A. E.; Hansen, S. D.; Bement, W. M.; Bieling, P. The Biochemical Mechanism of Rho GTPase Membrane Binding, Activation and Retention in Activity Patterning. EMBO J, 2025, 44(9), 2620–2657. doi: 10.1038/s44318-025-00418-z


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