sulfo-Cyanine7.5 NHS ester
Cat. # | Quantity | Price | Lead time | Buy this product |
---|---|---|---|---|
16320 | 1 mg | $125 | in stock | |
26320 | 5 mg | $325 | in stock | |
46320 | 25 mg |
$850
|
in stock | |
56320 | 50 mg |
$1490
|
in stock | |
66320 | 100 mg |
$1990
|
in stock |
sulfo-Cyanine7.5 is a near-infrared water-soluble and hydrophilic dye for the NIR imaging applications. The structure and spectra of the dye resemble indocyanine green (ICG) which has been approved for use in humans for years. However, unlike ICG, sulfo-Cyanine7.5 contains a trimethylene bridge that increases its quantum yield compared to ICG and has a linker arm for its attachment to proteins, peptides, and other molecules. This derivative is an NHS ester for the modification of amine groups.
Absorption and emission spectra of sulfo-Cyanine7.5

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Cyanine7.5 hydrazide
Near infrared fluorophore functionalized with hydrazide moiety. Reactive against carbonyl compounds, useful for the labeling of saccharides, and antibodies after periodate oxidation.Cyanine5 carboxylic acid
Cyanine5 carboxylic acid, unactivated dye. An analog of Cy5®; free carboxylic acid.Thiazole Orange NHS ester
Thiazole Orange NHS ester for labeling biomolecules (peptides, proteins, amino-DNA, etc.). Thiazole orange is a cyanine dye that is essentially dark in solution but has a bright fluorescence in double-stranded DNA and RNA.General properties
Appearance: | dark green solid |
Mass spec M+ increment: | 950.2 |
Molecular weight: | 1180.47 |
Molecular formula: | C49H48N3K3O16S4 |
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: | 778 |
ε, L⋅mol−1⋅cm−1: | 222000 |
Emission maximum, nm: | 797 |
Fluorescence quantum yield: | 0.21 |
CF260: | 0.09 |
CF280: | 0.09 |
Product citations
- Colville, M.J.; Huang, L.-T.; Schmidt, S.; Chen, K.; Vishwanath, K.; Su, J.; Williams, R.M.; Bonassar, L.J.; Reesink, H.L.; Paszek, M.J. Recombinant manufacturing of multispecies biolubricants. bioRxiv, 2024, preprint. doi: 10.1101/2024.05.05.592580
- Khadria, A.; Paavola, C.D.; Maslov, K.; Brown-Augsburger, P.L.; Grealish, P.F.; Lozano, E.; Blankenship, R.L.; Cao, R.; Shi, J.; Beals, J.M.; Oladipupo, S.S.; Wang, L.V. Photoacoustic imaging of the dynamics of a dye-labeled IgG4 monoclonal antibody in subcutaneous tissue reveals a transient decrease in murine blood oxygenation under anesthesia. Journal of Biomedical Optics, 2023, 28(11), 116002. doi: 10.1117/1.jbo.28.11.116002
- Shevchuk, A. I.; Svinko, V. O.; Smirnov, A. N.; Solovyeva, E. V. SERS Study of Cyanine Dyes: Optimization of Metal Core and Molecular Label Choice for Plasmonic Nanotags. Dyes and Pigments, 2023, 216, 111329. doi: 10.1016/j.dyepig.2023.111329.
- Musicò, A.; Zenatelli, R.; Romano, M.; Zendrini, A.; Alacqua, S.; Tassoni, S.; Paolini, L.; Urbinati, C.; Rusnati, M.; Bergese, P.; Pomarico, G.; Radeghieri, A. Surface functionalization of extracellular vesicle nanoparticles with antibodies: a first study on the protein corona “variable” † † Electronic supplementary information (ESI) available. See DOI: https://doi.org/10.1039/d3na00280b. Nanoscale Advances, 2023, 5(18), 4703-4717. doi: 10.1039/d3na00280b
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