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SiR-tetrazine

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General properties

CAS number : 2643948-31-4
Appearance: Red Solid
Molecular formula: C36H35N7O3Si
Molecular weight: 641.81
Storage conditions: -20°C in the dark

References

1. A near-infrared fluorophore for live-cell super-resolution microscopy of cellular proteins; G. Lukinavičius et al.; Nature Chemistry; 5, 132–139 (2013).
2. Superresolution imaging of the Golgi in live cells with a bioorthogonal ceramide probe;R. S. Erdmann et al.; Angew. Chem. Int. Ed.; 53: 10242–10246 (2014).
3. Genetic Code Expansion Enables Live-Cell and Super-Resolution Imaging of Site-Specifically Labeled Cellular Proteins; C. Uttamapinant et al., J. Am. Chem. Soc.,137 (14), pp 4602–4605 (2015)

Spectral properties

SiR-tetrazine's absorption and emission spectra
Excitation maximum, nm: 652 nm
ε, L⋅mol−1⋅cm−1: 1.0·105 mol-1·cm-1
Emission maximum, nm: 674 nm
Fluorescence quantum yield:
CF260: 0.116
CF280: 0.147
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SiR-tetrazine