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Cat. Number
Sulfo-Cyanine3 tetrazine
Chemical Name
Sulfo-Cyanine3 tetrazine
Mol. Formula
C40H44KN7O7S2
Mol. Weight
838.05
Qty 1
5mg
Qty 2
25mg
Appearance
red powder
Solubility
good in water, DMF, DMSO
Storage condition
-20°C
References

Tetrazine - trans-cyclooctene ligation is among the fastest bioconjugation reactions known to date.

This water soluble sulfo-Cyanine3 derivative contains methyltetrazine moiety for the coupling with trans-cyclooctenes. Methyltetrazines possess optimal stability at physiological pH, while maintaining extremely high reactivity towards cyclooctenes.

The fluorophore is bright, photostable, and is also very well visible with naked eye.

Spectral properties

Excitation maximum, nm: 548
ε, L⋅mol−1⋅cm−1: 162000
Emission maximum, nm: 563
Fluorescence quantum yield: 0.1
CF260: 0.03
CF280: 0.06
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