sulfo-Cyanine5 maleimide
Cat. # | Quantity | Price | Lead time | Buy this product |
---|---|---|---|---|
13380 | 1 mg |
$115
|
in stock | |
23380 | 5 mg |
$290
|
in stock | |
43380 | 25 mg |
$695
|
in stock | |
53380 | 50 mg |
$1270
|
in stock | |
63380 | 100 mg |
$1990
|
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

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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
- Damm, A.; Paik, S.-J.; Sadhu, R.K.; Di-Cicco, A.; Manzi, J.; Castellana, M.; Margeat, E.; Dahan, M.; Sens, P.; Lévy, D.; Bassereau, P. Mechanosensitivity of an ABC Membrane Transporter Revealed by Single Molecule FRET and Activity Measurement. bioRxiv, 2024, preprint. doi: 10.1101/2024.01.24.577054
- Moochickal Assainar, B.; Ragunathan, K.; Baldridge, R.D. Direct observation of autoubiquitination for an integral membrane ubiquitin ligase in ERAD. Nature Communications, 2024, 15, 1340. doi: 10.1038/s41467-024-45541-3
- Valentino, I. M.; Llivicota-Guaman, J. G.; Dao, T. P.; Mulvey, E. O.; Lehman, A. M.; Galagedera, S. K. K.; Mallon, E. L.; Castañeda, C. A.; Kraut, D. A. Phase Separation of Polyubiquitinated Proteins in UBQLN2 Condensates Controls Substrate Fate. Proceedings of the National Academy of Sciences, 2024, 121(33), e2405964121. doi: 10.1073/pnas.2405964121
- Zhang, Y.; Liang, L.; Li, H.; Cao, Y.; Meng, D.; Li, X.; Wang, M.; Wang, J.; Yao, Y.; Zhang, S.; Chen, C.; Hou, P.; Yang, Q. Smart multi‐functional aggregates reoxygenate tumor microenvironment through a two‐pronged strategy to revitalize cancer immunotherapy. Aggregate, 2024, 5(4), e545. doi: 10.1002/agt2.545
Cy® is a trademark of GE Healthcare.
Short link - lumiprobe.com/sh/p/1N
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