sulfo-Cyanine5.5 maleimide
| Cat. # | Quantity | Price | Lead time | Buy this product |
|---|---|---|---|---|
| 17380 | 1 mg |
$125
|
in stock | |
| 27380 | 5 mg |
$325
|
in stock | |
| 47380 | 25 mg |
$790
|
in stock | |
| 57380 | 50 mg |
$1490
|
in stock | |
| 67380 | 100 mg |
$1990
|
in stock |
sulfo-Cyanine5.5 dye is a water-soluble far-red to NIR emitting dye that is very hydrophilic due to the presence of four sulfo groups. sulfo-Cyanine5.5 derivatives exhibit high water solubility. The dye is perfect for labeling sensitive proteins, nanoparticles, and highly hydrophilic biopolymers.
This maleimide is a thiol-reactive dye that selectively labels cysteine residues. Disulfide bonds of native proteins should be reduced with an appropriate reducing agent, such as TCEP, according to our recommended protocol.
Absorption and emission spectra of sulfo-Cyanine5.5
Recommended protocol
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Cyanine5.5 azide
Far red / near infrared fluorescent Cyanine5.5 dye derivative for click chemistry.sulfo-Cyanine7.5 maleimide
sulfo-Cyanine7.5 is a highly hydrophilic near infrared dye for in vivo imaging. This maleimide derivative is useful for the labeling of thiol groups of proteins and peptides.sulfo-Cyanine7 NHS ester
sulfo-Cyanine7 NHS ester is a water-soluble, near-infrared, amine-reactive dye.General properties
| Appearance: | dark colored solid |
| Mass spec M+ increment: | 1024.2 |
| Molecular weight: | 1139.43 |
| CAS number: | 2183440-58-4 (potassium salt); 2183440-57-3 (inner salt) |
| Molecular formula: | C46H45K3N4O15S4 |
| Solubility: | good in water, DMSO, DMF |
| 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: | 673 |
| ε, L⋅mol−1⋅cm−1: | 211000 |
| Emission maximum, nm: | 691 |
| Fluorescence quantum yield: | 0.21 |
| CF260: | 0.09 |
| CF280: | 0.11 |
Product citations
- Xiang, L.; Henderson, M. I.; Drennan, S.; Sabuncu, S.; Fischer, J. M.; Yildirim, A. Peptide Amphiphile–Nanoparticle Assemblies for Mechano-Chemo Combination Therapy. Nano Lett, 2025. doi: 10.1021/acs.nanolett.5c01112
- Bayon, J.L.; Shih, C.; Craig, S.L.; Steinmetz, N.F. A simple swell-and-click method for the covalent attachment of virus-like particles to polymer hydrogels. Materials Today Chemistry, 2024, 38, 102100. doi: 10.1016/j.mtchem.2024.102100
- Sabuncu, S.; Montoya Mira, J.; Quentel, A.; Gomes, M. M.; Civitci, F.; Fischer, J. M.; Yildirim, A. Protein-Coated Biodegradable Gas-Stabilizing Nanoparticles for Cancer Therapy and Diagnosis Using Focused Ultrasound. Advanced Materials Interfaces, 2023, 10(2), 2201543. doi: 10.1002/admi.202201543
- Das, S.K.; Huynh, M.T.; Lee, T.-H. Spontaneous histone exchange between nucleosomes. The Journal of Biological Chemistry, 2023, 299(8), 105037. doi: 10.1016/j.jbc.2023.105037
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