sulfo-Cyanine5 maleimide
| Cat. # | Quantity | Price | Lead time | Buy this product |
|---|---|---|---|---|
| 13380 | 1 mg |
$99.00
|
in stock | |
| 23380 | 5 mg |
$309.90
|
in stock | |
| 43380 | 25 mg |
$749.90
|
in stock | |
| 53380 | 50 mg |
$1299.00
|
in stock | |
| 63380 | 100 mg |
$1699.00
|
in stock |
A water soluble, hydrophilic sulfo-Cyanine5 maleimide (Cy5® maleimide analog). We recommend this product for protein labeling, including labeling of antibodies as a perfect replacement for Cy5® maleimide. Labeled proteins can be easily separated from unreacted dye by gel filtration, spin column purification, dialysis, electrophoresis or chromatography.
An analog without sulfo groups, Cyanine5 maleimide, is also available.
Sulfo-Cyanine5 absorbance and emission spectra
Recommended protocol
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General properties
| Appearance: | dark blue powder |
| Molecular weight: | 803.00 |
| CAS number: | 2242791-82-6 |
| Molecular formula: | C38H43KN4O9S2 |
| Solubility: | soluble in water, DMSO, DMF |
| Quality control: | NMR 1H, HPLC-MS (95+%) |
| Storage conditions: | Storage: 24 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
- Liang, J.; Azubel, M.; Wang, G.; Nie, Y.; Kornberg, R. D.; Beel, A. J.; Mattei, P.-J. A Universal Method for the Purification of C2H2 Zinc Finger Arrays. PLOS ONE, 2025, 20(2), e0318295. doi: 10.1371/journal.pone.0318295
- Mandecki, W.; Chudaev, M.; Ye, W.; Wang, A. Q.; Wilson, K. J.; Xu, X.; Kim, J.; Parker, D.; Alland, D.; Kumar, P.; Li, B.; Yang, J. H.; Kreiswirth, B.; Mediavilla, J. R.; Marugan, J. J.; Henderson, M. J.; Goldman, E. Identification of an Antibiotic from an HTS Targeting EF-Tu:tRNA Interaction: A Prospective Topical Treatment for MRSA Skin Infections. Appl Environ Microbiol, 2025, 91(1), e02046-24. doi: 10.1128/aem.02046-24
- Hei, Y.; Wang, B.; He, Y.; Wang, W.; Xue, Y.; Chen, C. Photostability of Organic Fluorophore Influenced by Adjacent Amino Acid Residues. Commun Chem, 2025, 8(1), 262. doi: 10.1038/s42004-025-01661-5
- Ford, A. L.; Taft, C. W.; Sprague-Getsy, A. M.; Carlson, G. C.; Mate, N. A.; Sieburg, M. A.; Chisholm, J. D.; Hougland, J. L. A Modular Customizable Ligand-Conjugate (LC) System Targeting Ghrelin O-Acyltransferase. Biomolecules, 2025, 15(2), 204. doi: 10.3390/biom15020204
Cy® is a trademark of GE Healthcare.
This Product is offered and sold for research purposes only. It has not been tested for safety and efficacy in food, drug, medical device, cosmetic, commercial or any other use. Supply does not express or imply authorization to use for any other purpose, including, without limitation, in vitro diagnostic purposes, in the manufacture of food or pharmaceutical products, in medical devices or in cosmetic products.
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