Coumarin 343 X carboxylic acid
| Cat. # | Quantity | Price | Lead time | Buy this product |
|---|---|---|---|---|
| 12690 | 1 mg | $110.00 | in stock | |
| 22690 | 5 mg | $210.00 | in stock | |
| 42690 | 25 mg |
$410.00
|
in stock | |
| 52690 | 50 mg |
$695.00
|
in stock | |
| 62690 | 100 mg |
$1190.00
|
in stock |
Coumarin 343 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 Coumarin 343
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Water soluble cyanine dye with bright fluorescence, and high extinction coefficient. Contains an amino group for the conjugation with electrophiles, and enzymatic transamination labeling.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 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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