Cyanine3 maleimide
| Cat. # | Quantity | Price | Lead time | Buy this product |
|---|---|---|---|---|
| 11080 | 1 mg | $125 | in stock | |
| 21080 | 5 mg | $260 | in stock | |
| 41080 | 25 mg |
$510
|
in stock | |
| 51080 | 50 mg |
$895
|
in stock | |
| 61080 | 100 mg |
$1490
|
in stock |
Thiol mono-reactive Cyanine3 dye. This reagent can be used to attach Cyanine3 fluorophore (an analog of Cy3®) to proteins and peptides containing cysteine residues, as well as to other thiolated molecules (such as thiol-containing oligonucleotides).
Cystines should be reduced with TCEP (tris-carboxyethylphosphine) or other appropriate reductant prior to the labeling.
Labeling with Cyanine3 maleimide is selective, and efficient.
We recommend using water-soluble Sulfo-Cyanine3 maleimide for the labeling of antibodies and other sensitive proteins.
Cy3 absorbance and emission spectra
Recommended protocol
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sulfo-Cyanine5 amine
Sulfonated Cyanine5 amine derivative for the conjugation with electrophiles and enzymatic transamination labeling.Alkyne hydrazide
Bifunctional reagent containing alkyne group and hydrazide function. It reacts with aldehydes and ketones. Alkyne group can then be coupled with various azides via CuAAC reaction.General properties
| Appearance: | red powder |
| Molecular weight: | 666.56 |
| Molecular formula: | C36H43N4O3BF4 |
| Solubility: | well soluble in DMSO (0.50 M = 330 g/L), in DMF, dichloromethane, very poorly soluble in water (0.57 mM = 420 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: | 555 |
| ε, L⋅mol−1⋅cm−1: | 150000 |
| Emission maximum, nm: | 570 |
| Fluorescence quantum yield: | 0.31 |
| CF260: | 0.04 |
| CF280: | 0.09 |
Product citations
- 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
- Fischer, J.M.; Stewart, M.; Dai, M.; Drennan, S.; Holland, S.; Quentel, A.; Sabuncu, S.; Kingston, B.R.; Dengos, I.; Xiang, L.; Bonic, K.; Goncalves, F.; Yi, X.; Ranganathan, S.; Branchaud, B.P.; Muldoon, L.L.; Barajas, R.F.; Yildirim, A. Peptide Amphiphiles Hitchhike on Endogenous Biomolecules for Enhanced Cancer Imaging and Therapy. bioRxiv, 2024, preprint. doi: 10.1101/2024.02.21.580762
- Chadda, R.; Lee, T.; Mahoney-Kruszka, R.; Kelley, E. G.; Bernhardt, N.; Sandal, P.; Robertson, J. L. A Thermodynamic Analysis of CLC Transporter Dimerization in Lipid Bilayers. Proceedings of the National Academy of Sciences, 2023, 120(41), e2305100120. doi: 10.1073/pnas.2305100120
- Binda, O.; Juillard, F.; Ducassou, J.N.; Kleijwegt, C.; Paris, G.; Didillon, A.; Baklouti, F.; Corpet, A.; Couté, Y.; Côté, J.; Lomonte, P. SMA-linked SMN mutants prevent phase separation properties and SMN interactions with FMRP family members. Life Science Alliance, 2023, 6(1), e202201429. doi: 10.26508/lsa.202201429
Cy® is a trademark of GE Healthcare.
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