Cyanine3B carboxylic acid
| Cat. # | Quantity | Price | Lead time | Buy this product |
|---|---|---|---|---|
| 2321-1mg | 1 mg | $125 | in stock | |
| 2321-5mg | 5 mg | $325 | in stock | |
| 2321-25mg | 25 mg |
$850
|
in stock | |
| 2321-50mg | 50 mg |
$1490
|
in stock | |
| 2321-100mg | 100 mg |
$2450
|
in stock |
Cyanine3B is a yellow-emitting cyanine dye that is an improved version of the Cyanine3 fluorophore with significantly higher fluorescence quantum yield and photostability.
Cyanine3B carboxylic acid is a non-reactive form of Cyanine3B that can be used as a reference standard in experiments using conjugates of this fluorophore. Cyanine3B carboxylic acid can also be used to synthesize activated esters or modified with hydrazines, hydroxylamines, and amines for subsequent conjugation with biomolecules.
Cyanine3B absorbance and emission spectra
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sulfo-Cyanine3 free unactivated monofunctional carboxylic acid, water-soluble dye.General properties
| Appearance: | dark red powder |
| Molecular weight: | 560.67 |
| CAS number: | 228272-69-3 |
| Molecular formula: | C31H32N2O6S |
| Solubility: | good in DMF, DMSO |
| Quality control: | NMR 1H and HPLC-MS (95+%) |
| Storage conditions: | 24 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Desiccate. |
| 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 |
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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