TAMRA (TMR, tetramethylrhodamine) azide, solid compound, and 10 mM solution in DMSO, labeling reagent for Click Chemistry. Pure 5-isomer.
TAMRA is often used as FRET acceptor for FAM fluorophore.
Can replace Alexa Fluor 555, DyLight 549.
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General properties
| Appearance: | violet solid / solution | 
| Molecular weight: | 512.56 | 
| CAS number: | 825651-66-9 | 
| Molecular formula: | C28H28N6O4 | 
| Solubility: | good in polar organic solvents (DMF, DMSO, alcohols), low in water | 
| 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. | 
  Spectral properties
| Excitation 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 |