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TAMRA carboxylic acid, 5-isomer
| 貨號 | 數量 | 價格 | 交貨時間 | 購買此產品 |
|---|---|---|---|---|
| 17190 | 1 mg | – | 現貨 | |
| 27190 | 5 mg | $110 | 現貨 | |
| 47190 | 25 mg | $125 | 現貨 | |
| 57190 | 50 mg | $185 | 現貨 |
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.
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Cyanine 5.5羧酸 (Cyanine5.5 carboxylic acid)
Cy5.5 未活化的游離酸Cyanine染料。TAMRA NHS 酯，5-異構體 (TAMRA NHS ester, 5-isomer)
胺反應性、活化的 TAMRA 染料 N-羥基琥珀酰亞胺酯，用於標記蛋白質、多肽和氨基寡核苷酸的胺基。純5-異構體。FAM NHS 酯，6-異構體 (FAM NHS ester, 6-isomer)
活化的螢光素 N-羥基琥珀醯亞胺酯 (FAM)，純 6-異構體。General properties
| Appearance: | green powder |
| Molecular weight: | 430.46 |
| 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: | 下載 |
| 產品規格 |
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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