ROX NHS ester, 6- isomer
| Cat. # | Quantity | Price | Lead time | Buy this product |
|---|---|---|---|---|
| 12220 | 1 mg | $110.00 | in stock | |
| 22220 | 5 mg | $210.00 | in stock | |
| 42220 | 25 mg |
$410.00
|
in stock | |
| 52220 | 50 mg |
$695.00
|
in stock | |
| 62220 | 100 mg |
$1190.00
|
in stock |
ROX (rhodamine X aka R101) is a highly fluorescent, and photostable rhodamine dye for various applications. ROX labeled oligonucleotide probes are often used in qPCR, and qPCR instruments have ROX channel.
This is reactive dye for the labeling of amino-groups in peptides, proteins, and amino-oligonucleotides. Pure single isomer.
This dye can replace Alexa Fluor 568, Texas Red.
Absorption and emission spectra of ROX dye
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General properties
| Appearance: | dark crimson powder |
| Mass spec M+ increment: | 516.2 |
| Molecular weight: | 631.67 |
| CAS number: | 117491-83-5 |
| Molecular formula: | C37H33N3O7 |
| Solubility: | good in polar organic solvents (DMF, DMSO), low in water |
| Quality control: | NMR 1H, HPLC-MS (80+%, balance mostly free carboxylic acid) |
| 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 |
Spectral properties
| Excitation maximum, nm: | 570 |
| ε, L⋅mol−1⋅cm−1: | 82000 |
| Emission maximum, nm: | 591 |
| Fluorescence quantum yield: | 1.0 |
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