Coumarin 343 X NHS ester
| Cat. # | Quantity | Price | Lead time | Buy this product |
|---|---|---|---|---|
| 12620 | 1 mg | $110.00 | in stock | |
| 22620 | 5 mg | $210.00 | in stock | |
| 42620 | 25 mg |
$410.00
|
in stock | |
| 52620 | 50 mg |
$695.00
|
in stock | |
| 62620 | 100 mg |
$1190.00
|
in stock |
Blue emitting Coumarin 343 dye can form a FRET pair with fluorescein (FAM). An amine reactive form, activated NHS ester.
This amine-reactive NHS ester contains an aminohexanoyl linker between the fluorophore, and the reactive group. This linker provides better solubility and spatial separation between the fluorophore, and the target molecule being labeled.
This reagent can be used to design FRET based assays with FAM as acceptor, and to construct systems which harvest blue light energy.
Absorption and emission spectra of Coumarin 343
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| Appearance: | yellow solid |
| Molecular weight: | 495.52 |
| CAS number: | 946123-12-2 |
| Molecular formula: | C26H29N3O7 |
| Solubility: | good in DCM, DMSO, DMF |
| Quality control: | NMR 1H, HPLC-MS (95%) |
| Storage conditions: | Storage: 12 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 |
Product citations
- Zheng, L.; Zhao, H.; Han, Y.; Qian, H.; Vukovic, L.; Mecinović, J.; Král, P.; Huck, W.T.S. Catalytic transport of molecular cargo using diffusive binding along a polymer track. Nature Chemistry, 2019, 11(4), 359–366. doi: 10.1038/s41557-018-0204-7
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