TAMRA maleimide, 5-isomer
| Cat. # | Quantity | Price | Lead time | Buy this product |
|---|---|---|---|---|
| 17180 | 1 mg | $110 | in stock | |
| 27180 | 5 mg | $210 | in stock | |
| 47180 | 25 mg |
$410
|
in stock | |
| 57180 | 50 mg |
$695
|
in stock | |
| 67180 | 100 mg |
$1190
|
in stock |
Maleimide derivative of TAMRA (tetramethylrhodamine) for the labeling of thiol groups. Pure 5-isomer of TAMRA.
Absorption and emission spectra of 5-TAMRA
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TAMRA maleimide, 6-isomer
TAMRA is a well known xanthene dye of rhodamine series. This is a thiol reactive maleimide for the labeling of SH groups in proteins and peptides. Pure 6-isomer.AF 488 NHS ester
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Thiol reactive maleimide, water soluble cyanine dye for Cy5 channel.General properties
| Appearance: | red powder |
| Mass spec M+ increment: | 552.2 |
| Molecular weight: | 552.58 |
| Molecular formula: | C31H28N4O6 |
| IUPAC name: | 1-[2-({3',6'-Bis(dimethylamino)-3-oxospiro[isobenzofuran-1,9'-xanthen]-5-yl}carbonylamino)ethyl]-1H-pyrrole-2,5-dione |
| Solubility: | good in DMF, DMSO |
| 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/absorption maximum, nm: | 541 |
| ε, L⋅mol−1⋅cm−1: | 84000 |
| Emission maximum, nm: | 567 |
| Fluorescence quantum yield: | 0.1 |
| CF260: | 0.32 |
| CF280: | 0.19 |
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