TAMRA carboxylic acid, 5-isomer
| Cat. # | Quantity | Price | Lead time | Buy this product |
|---|---|---|---|---|
| 67190 | 100 mg |
$199.90
|
in stock | |
| 87190 | 1 g |
please inquire
|
12 days | |
| 97190 | 5 g |
please inquire
|
12 days |
Tetramethylrhodamine (TAMRA) is a xanthene dye with orange emission. The dye is a FRET acceptor for FAM and is sometimes used as a quencher of FAM. Like other xanthenes, TAMRA exists as two isomers (5- and 6-) with similar spectral properties. This compound is a pure 5-isomer of TAMRA.
TAMRA carboxylic acid is a non-reactive form of TAMRA dye that can be used as a reference standard in experiments involving TAMRA dye conjugates. Besides, the carboxylic group can react with hydrazines, hydroxylamines, and amines using carbodiimides such as EDAC.
Absorption and emission spectra of 5-TAMRA
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General properties
| Appearance: | green powder |
| Molecular weight: | 430.46 |
| CAS number: | 91809-66-4 |
| Molecular formula: | C25H22N2O5 |
| Quality control: | NMR 1H and HPLC-MS (95+%) |
| Storage conditions: | 24 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Desiccate. Avoid prolonged exposure to light. |
| 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 |
This Product is offered and sold for research purposes only. It has not been tested for safety and efficacy in food, drug, medical device, cosmetic, commercial or any other use. Supply does not express or imply authorization to use for any other purpose, including, without limitation, in vitro diagnostic purposes, in the manufacture of food or pharmaceutical products, in medical devices or in cosmetic products.
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