Description
Cy7 azide is a functionalized cyanine dye containing an azide group which can react with alkynes for copper-catalyzed Click Chemistry. Cyanine7 is a far-red dye ideal for living organism imaging and applications requiring low fluorescence background.
Chemical Properties
Appearance: Green solid
ex/em: 740/770 nm (PBS buffer)
Extinction coefficient (ε): 199000 Lmol1cm1
Quantum yield (Φ): 0.3
Uses
Cyanine7 azide chloride belongs to the cyanine dye series and is a common fluorescent marker for biomolecules that can interact with biomolecules. Cyanine dyes may also bind to double-helical DNA through intercalation and exhibit enhanced fluorescence upon binding.
References
[1] Armitage B A. Cyanine dye–DNA interactions: intercalation, groove binding, and aggregation[J]. DNA Binders and Related Subjects: -/-, 2005: 55-76.
Fluoresene quantum yield
0.2
Extinction Coefficient
198000
