With its quantum yield approaching unity, ROX has become a popular dye for qPCR and microscopy. This bright fluorophore is available as an alkyne for copper-catalyzed Click chemistry reaction.
This is a pure 5-isomer of ROX.
ROX is prone to oxidation. Therefore, its derivatives should be preferably stored in inert atmosphere.
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General properties
| Appearance: | purple solid | 
| Mass spec M+ increment: | 571.3 | 
| Molecular weight: | 571.66 | 
| Molecular formula: | C36H33N3O4 | 
| Solubility: | good in DMSO, DMF, methanol, ethanol | 
| Quality control: | NMR 1H, HPLC-MS (95%) | 
| Storage conditions: | Storage: 24 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Avoid prolonged exposure to light. Desiccate. | 
  Spectral properties
| Excitation maximum, nm: | 570 | 
| ε, L⋅mol−1⋅cm−1: | 80000 | 
| Emission maximum, nm: | 591 | 
| Fluorescence quantum yield: | 1.00 |