sulfo-Cyanine5 NHS ester
| Cat. # | Quantity | Price | Lead time | Buy this product |
|---|---|---|---|---|
| 13320 | 1 mg |
$99.00
|
in stock | |
| 23320 | 5 mg |
$159.90
|
in stock | |
| 43320 | 25 mg |
$489.90
|
in stock | |
| 53320 | 50 mg |
$809.90
|
in stock | |
| 63320 | 100 mg |
$1299.00
|
in stock |
Water-soluble Cyanine5 succinimidyl ester (SE), an equivalent of Cy5® NHS ester, for the labeling of various amine-containing molecules in aqueous phase without use of any organic co-solvent. This product is, therefore, particularly useful for the labeling of proteins that denature in the presence of organic co-solvents, as well as for proteins with low solubility.
sulfo-Cyanine 5 is an analog of Cy5®, one of the most popular fluorophores, which is compatible with various equipment such as plate readers, microscopes, and imagers.
This dye is highly hydrophilic and water-soluble. A non-sulfonated analog is also available.
Can be used as a replacement for Cy5®, DyLight 649 for all applications.
sulfo-Cyanine5 absorbance and emission spectra
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General properties
| Appearance: | dark blue powder |
| Molecular weight: | 777.95 |
| CAS number: | 2230212-27-6; 146368-14-1 (N-Ethyl) |
| Molecular formula: | C36H40N3KO10S2 |
| Solubility: | very good in water, good in DMF and 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. |
| MSDS: | Download |
| Product specifications |
Spectral properties
| Excitation/absorption maximum, nm: | 646 |
| ε, L⋅mol−1⋅cm−1: | 271000 |
| Emission maximum, nm: | 662 |
| Fluorescence quantum yield: | 0.28 |
| CF260: | 0.04 |
| CF280: | 0.04 |
Product citations
- Leurs, Y.; Hout, W. V. D.; Gardin, A.; Dongen, J. V.; Hest, J. V.; Grisoni, F.; Brunsveld, L. Automated Navigation of Condensate Phase Behavior with Active Machine Learning. ChemRxiv, 2025, preprint. doi: 10.26434/chemrxiv-2024-frnj3
- Shevtsov, M.; Yudintceva, N.; Bobkov, D.; Likhomanova, R.; Nechaeva, A.; Mikhailova, E.; Oganesyan, E.; Fedorov, V.; Kurkin, A.; Lukacheva, A.; Fofanov, G.; Kim, A.; Fedorov, E.; Sitovskaya, D.; Ulitin, A.; Mikhailova, N.; Anufriev, I.; Istomina, M.; Murashko, E.; Kessenikh, E.; Aksenov, N.; Vakhitova, Y.; Samochernykh, K.; Pitkin, E.; Shlyakhto, E.; Combs, S. E. RAS70 Peptide Targets Multiforme Glioblastoma by Binding to the Plasma Membrane Heat Shock Protein HSP70. Front. Oncol., 2025, 15. doi: 10.3389/fonc.2025.1543657
- Soeiro, J. F.; Pereira, R. A.; Oliveira‐Silva, R.; Sousa, F. L.; Gaspar, V. M.; Mano, J. F.; Millán, Á.; Innocenti, C.; Mariani, M.; Lascialfari, A.; Silva, N. J. O. 3D Temperature Mapping During Photothermal Therapy in Cellular Assemblies. Small Structures, 2025, 6(6), 2400658. doi: 10.1002/sstr.202400658
- Molina-Solís, J.; Gama, P.; Chauhan, K.; Rodríguez-Hernández, A. G.; Vazquez-Duhalt, R. Virus-Based Enzymatic Nanoreactors with Acid Alpha-Glucosidase for the Potential Treatment of Pompe Disease. Mater. Adv., 2025, 6(5), 1613–1620. doi: 10.1039/D4MA00943F


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