Cyanine5 maleimide
| Cat. # | Quantity | Price | Lead time | Buy this product |
|---|---|---|---|---|
| 13080 | 1 mg | $125 | in stock | |
| 23080 | 5 mg | $260 | in stock | |
| 43080 | 25 mg |
$510
|
in stock | |
| 53080 | 50 mg |
$895
|
in stock | |
| 63080 | 100 mg |
$1490
|
in stock |
Cyanine5 maleimide is a mono-reactive dye which selectively couples with thiol groups (for example, with cysteines in peptides and proteins) to give labeled conjugates.
Cyanine5 is an analog of Cy5®, a common fluorophore which is compatible with various instrumentation like microscopes, imagers, and fluorescence readers.
For the labeling of antibodies and sensitive proteins we recommend to use the water soluble sulfo-Cyanine5 maleimide.
Cyanine5 excitation and emission spectra
Recommended protocol
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Cyanine3 hydrazide is a carbonyl-reactive dye for Cy3 channel.General properties
| Appearance: | dark blue powder |
| Molecular weight: | 605.8 |
| CAS number: | 1437872-46-2 (without anion) |
| Molecular formula: | C38H45N4O3 |
| IUPAC name: | 3H-Indolium, 2-[5-[1-[6-[[2-(2,5-dihydro-2,5-dioxo-1H-pyrrol-1-yl)ethyl]amino]-6-oxohexyl]-1,3-dihydro-3,3-dimethyl-2H-indol-2-ylidene]-1,3-pentadien-1-yl]-1,3,3-trimethyl- |
| Solubility: | soluble in organic solvents (DMF, DMSO, dichloromethane), practically insoluble in water (31 uM, 23 mg/L) |
| 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: | 250000 |
| Emission maximum, nm: | 662 |
| Fluorescence quantum yield: | 0.2 |
| CF260: | 0.03 |
| CF280: | 0.04 |
Product citations
- Uckelmann, M.; Levina, V.; Taveneau, C.; Han Ng, X.; Pandey, V.; Martinez, J.; Mendiratta, S.; Houx, J.; Boudes, M.; Venugopal, H.; Trépout, S.; Zhang, Q.; Flanigan, S.; Li, M.; Sierecki, E.; Gambin, Y.; Das, P.P.; Bell, O.; de Marco, A.; Davidovich, C. Dynamic PRC1-CBX8 stabilizes a porous structure of chromatin condensates. bioRxiv, 2024, preprint. doi: 10.1101/2023.05.08.539931
- Johnson, J.L.; Steele, J.H.; Lin, R.; Stepanov, V.G.; Gavriliuc, M.N.; Wang, Y. Multi-Channel smFRET study reveals a Compact conformation of EF-G on the Ribosome. bioRxiv, 2024, preprint. doi: 10.1101/2024.01.27.577133
- Huang, L.; Liu, P.; Du, Y.; Pan, D.; Lee, A.; Wolfe, S.A.; Wang, Y.-X. A brown fat-enriched adipokine, ASRA, is a leptin receptor antagonist that stimulates appetite. bioRxiv, 2023, preprint. doi: 10.1101/2023.09.12.557454
- Chen, L.; Xu, N.; Wang, P.; Zhu, H.; Zhang, Z.; Yang, Z.; Zhang, W.; Guo, H.; Lin, J. Nanoalbumin–Prodrug Conjugates Prepared via a Thiolation-and-Conjugation Method Improve Cancer Chemotherapy and Immune Checkpoint Blockade Therapy by Promoting CD8+ T-Cell Infiltration. Bioengineering & Translational Medicine, 2023, 8(1), e10377. doi: 10.1002/btm2.10377
Cy® is a trademark of GE Healthcare.
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