ROX alkyne, 6-isomer

Cat. # Quantity Price Lead time
A22B0 1 mg
$110
in stock
B22B0 5 mg
$165
in stock
C22B0 10 mg
$210
in stock
D22B0 25 mg
$285
in stock
E22B0 50 mg
$495
in stock
F22B0 100 mg
$880
in stock
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ROX alkyne is an alkyne derivative of the bright red-emitting dye ROX (Rhodamine X, Rhodamine 101). Due to its quantum yield approaching unity, ROX is a popular dye for qPCR and microscopy applications. It is used for fluorescent labeling of azide-containing biomolecules via copper-catalyzed click reaction. This product is a pure 6-isomer of ROX.

ROX is prone to oxidation; therefore, its derivatives should preferably be stored in an inert atmosphere.

Absorption and emission spectra of ROX

Absorption and emission spectra of ROX

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General properties

Appearance: red powder
Molecular weight: 571.68
CAS number: 2097422-22-3
Molecular formula: C36H33N3O4
Solubility: good in DMSO, DMF, methanol, ethanol
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: 570
ε, L⋅mol−1⋅cm−1: 93000
Emission maximum, nm: 591
Fluorescence quantum yield: 1.0
CF260: 0.62
CF280: 0.49
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