Sulfo-Cyanine 5.5 is a dye with far-red emission approaching NIR range. It has found application in non-invasive live-organism imaging. This particular derivative of sulfo-Cyanine 5.5, the DBCO (or ADIBO) derivative, contains cycloalkyne for copper-free conjugation of this fluorophore with various organic azides. The reaction between DBCO and azides is blazingly fast, orders of magnitude exceeding the rate of copper-catalyzed reaction between azides and terminal alkynes. It is also catalyst-free. This reagent can be used to conjugate sulfo-Cyanine 5.5 dye to a variety of azide-labeled molecules.
Absorption Maxima
673 nm
Extinction Coefficient
235000 M-1cm-1
Emission Maxima
691 nm
CF260
0.09
CF280
0.11
Purity
95% (by 1H NMR and HPLC-MS).
Molecular Formula
C61H59N4K3O14S4
Molecular Weight
1317.69 kDa
Product Form
Dark blue solid.
Solubility
Good in water, DMF, and DMSO.
Storage
Shipped at room temperature. Upon delivery, store in the dark at -20°C. Avoid prolonged exposure to light. Desiccate.
Disclaimer
This product is for research use only. It is not intended for diagnostic or therapeutic use.
