Cyanine3B maleimide
| Cat. # | Quantity | Price | Lead time | Buy this product |
|---|---|---|---|---|
| 19380 | 1 mg | $250 | in stock | |
| 29380 | 5 mg |
$450
|
in stock | |
| 49380 | 25 mg |
$1750
|
in stock |
Cyanine3B is one of the brightest fluorophores possessing high sensitivity. Cyanine3B dye maleimide is used to produce maleimide-thiol conjugates via thiols to antibodies, peptides, and other biomolecules with Cyanine3B fluorophore with high fluorescence quantum yield and photostability. Michael-addition of a thiol to a maleimide approach enables the selective method of antibody labeling.
This is a sulfonated dye and can be used for efficient labeling in water buffers.
Cyanine3B absorption and emission spectra
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Amine-reactive activated ester of water-soluble, sulfonated sulfo-Cyanine3.5 dye.AF 488 maleimide
AF 488 C6 maleimide is a thiol-reactive dye for labeling of protein SH groups.General properties
| Appearance: | golden-purple powder |
| Molecular weight: | 682.80 |
| Molecular formula: | C37H38N4O7S |
| Solubility: | in DMSO, DMF |
| Quality control: | NMR 1H and HPLC-MS (90+%) |
| Storage conditions: | 12 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Desiccate. Avoid prolonged exposure to light. |
| MSDS: | Download |
| Product specifications |
Spectral properties
| Excitation/absorption maximum, nm: | 559 |
| ε, L⋅mol−1⋅cm−1: | 121000 |
| Emission maximum, nm: | 571 |
| Fluorescence quantum yield: | 0.68 |
| CF260: | 0.044 |
| CF280: | 0.077 |
Product is offered and sold for research purposes only. Product is not tested for safety and efficacy in food, drug, medical device, cosmetic, no express or implied authorization to use for any other purpose, including, without limitation, in vitro diagnostic purposes, for humans or animals or for commercial purposes.
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