sulfo-Cyanine3.5 carboxylic acid
Cat. # | Quantity | Price | Lead time | Buy this product |
---|---|---|---|---|
12390 | 1 mg | $110 | in stock | |
22390 | 5 mg | $210 | in stock | |
42390 | 25 mg | $410 | in stock | |
52390 | 50 mg | $695 | in stock | |
62390 | 100 mg | $1190 | in stock |
sulfo-Cyanine3.5 is a cyanine fluorophore with fluorescence in the orange spectrum range. Its absorption and emission spectra are between those of Cyanine3 and Cyanine5.
This dye is a sulfonated form of Cyanine3.5 (contains four sulfo groups), so it has good solubility and can be used in reactions without adding organic solvents.
This reagent is a derivative with a free carboxyl group. Because of its inactivity in physiological conditions, sulfo-Cyanine3.5 carboxylic acid derivative can be used as a negative control in experiments with active dye derivatives. The carboxylic acid can be activated with carbodiimides (e. g. EDAC) and react with hydrazines, hydroxylamines, and amines.
Absorption and emission spectra of sulfo-Cyanine3.5
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Azide derivative of water-soluble sulfo-Cyanine3.5 dye for bioconjugation via click chemistry.General properties
Appearance: | dark colored solid |
Molecular weight: | 991.26 |
Molecular formula: | C38H37N2K3O14S4 |
Solubility: | good in water, DMF, DMSO |
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: | 576 |
ε, L⋅mol−1⋅cm−1: | 139000 |
Emission maximum, nm: | 603 |
Fluorescence quantum yield: | 0.11 |
CF260: | 0.16 |
CF280: | 0.17 |