Sulfo-Cyanine7 NHS ester
Cat. # | Quantity | Price | Lead time | Buy this product |
---|---|---|---|---|
15320 | 1 mg | $110.00 | in stock | |
25320 | 5 mg | $290.00 | in stock | |
45320 | 25 mg |
$690.00
|
in stock | |
55320 | 50 mg |
$1270.00
|
in stock | |
65320 | 100 mg |
$1990.00
|
in stock |
Water soluble near infrared dye sulfo-Cyanine7, an amine-reactive succinimide ester.
Sulfo-Cyanine7 is an improved analog of Cy7® fluorophore with quantum yield improved by 20%, and higher photostability. This fluorescent dye is especially useful for NIR imaging.
Near infrared fluorescent imaging takes advantage of transparency of biological tissues at particular range of wavelengths. The method is non-destructive, and allows to monitor distribution of various labeled molecules in live organisms.
Sulfo-Cyanine7 NHS ester reagent allows to prepare sulfo-Cyanine7-labeled biomolecules, such as proteins, with ease. Dye labeled molecules can be subsequently used for various research and drug design related experiments.
This reagent has high water solubility, and is especially useful for the labeling of delicate proteins, and proteins prone to denaturation. Non-sulfonated Cyanine7 NHS ester soluble in organic phase is also available.
Sulfo-Cyanine7 absorbance and emission spectra

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Appearance: | dark green powder |
Molecular weight: | 844.05 |
CAS number: | 1603861-95-5 (potassium salt); 1604244-45-2 (inner salt); 477908-53-5 (N-Ethyl) |
Molecular formula: | C41H46N3KO10S2 |
Solubility: | good in water, 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. |
MSDS: | Download |
Product specifications |
Spectral properties
Excitation/absorption maximum, nm: | 750 |
ε, L⋅mol−1⋅cm−1: | 240600 |
Emission maximum, nm: | 773 |
Fluorescence quantum yield: | 0.24 |
CF260: | 0.04 |
CF280: | 0.04 |
Product citations
- Kang, Y.; Nack, L.M.; Liu, Yang and.; Qi, B.; Huang, Y.; Liu, Z.; Chakraborty, I.; Schulz, F.; Ahmed, A.A.A.; Poveda, M.C.; Hafizi, F.; Roy, S.; Mutas, M.; Holzapfel, M.; Sanchez-Cano, C.; Wegner, K.D.; Feliu, N.; Parak, W.J. Quantitative considerations about the size dependence of cellular entry and excretion of colloidal nanoparticles for different cell types. ChemTexts, 2022, 8(1), 9. doi: 10.1007/s40828-021-00159-6
- do Valle Gomes, M.Z.; Masdeu, G.; Eiring, P.; Kuhlemann, A.; Sauer, M.; Åkerman, B:; Palmqvist, A.E.C. Improved biocatalytic cascade conversion of CO2 to methanol by enzymes Co-immobilized in tailored siliceous mesostructured cellular foams. Catalysis Science & Technology, 2021, 11(21), 6952–6959. doi: 10.1039/D1CY01354H
- Trac, N.; Chen, L.-Y.; Zhang, A.; Liao, C.-P.; Poon, C.; Wang, J.; Ando, Y.; Joo, J.; Garri, C.; Shen, K.; Kani, K.; Gross, M.E.; Chung, E.J. CCR2-targeted micelles for anti-cancer peptide delivery and immune stimulation. Journal of Controlled Release, 2021, 329, 614–623. doi: 10.1016/j.jconrel.2020.09.054
- González, L.F.; Acuña, E.; Arellano, G.; Morales, P.; Sotomayor, P.; Oyarzun-Ampuero, F.; Naves, R. Intranasal delivery of interferon-β-loaded nanoparticles induces control of neuroinflammation in a preclinical model of multiple sclerosis: A promising simple, effective, non-invasive, and low-cost therapy. Journal of Controlled Release, 2021, 331, 443–459. doi: 10.1016/j.jconrel.2020.11.019
