AF 343 (Coumarin) X carboxylic acid
| Cat. # | Quantity | Price | Lead time | Buy this product |
|---|---|---|---|---|
| 12690 | 1 mg | $105 | in stock | |
| 22690 | 5 mg | $165 | in stock | |
| 42690 | 25 mg | $285 | in stock | |
| 52690 | 50 mg |
$495
|
in stock | |
| 62690 | 100 mg |
$880
|
in stock |
AF 343 (Coumarin) is a blue-emitting fluorophore used as a laser dye. The fluorophore can serve as a FRET donor for FAM (fluorescein).
Absorption and emission spectra of AF 343 (Coumarin)
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The free carboxylic acid of Cyanine3 dye. Non-sulfonated dye, with good solubility in organic solvents, and limited aqueous solubility.sulfo-Cyanine5 maleimide
Thiol reactive maleimide, water soluble cyanine dye for Cy5 channel.General properties
| Appearance: | yellow crystals |
| Molecular weight: | 398.45 |
| CAS number: | 946123-11-1 |
| Molecular formula: | C22H26N2O5 |
| IUPAC name: | 6-({4-Oxo-3-oxa-13-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1,5,7,9(17)-tetraen-5-yl}carbonylamino)hexanoic acid |
| Solubility: | Well soluble in DMF, DMSO, moderately soluble in DCM, DCE, EtOAc, insoluble in diethyl ether. |
| 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: | 437 |
| ε, L⋅mol−1⋅cm−1: | 39000 |
| Emission maximum, nm: | 477 |
| Fluorescence quantum yield: | 0.63 |
| CF260: | 0.29 |
| CF280: | 0.24 |
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