Sulfo-Cyanine7 NHS ester

Description

Water-soluble near-infrared dye sulfo-Cyanine7, an amine-reactive succinimide ester.

sulfo-Cyanine7 is an improved analog of Cy7® fluorophore with quantum yield improved by 20%, and higher photostability. This fluorescent dye is especially useful for NIR imaging.

Near-infrared fluorescent imaging takes advantage of the transparency of biological tissues at a particular range of wavelengths. The method is non-destructive and allows to monitor of the distribution of various labeled molecules in live organisms.

sulfo-Cyanine7 NHS ester reagent allows to prepare sulfo-Cyanine7-labeled biomolecules, such as proteins, with ease. Dye-labeled molecules can be subsequently used for various research and drug design-related experiments.

This reagent has high water solubility and is especially useful for labeling delicate proteins and proteins prone to denaturation. Non-sulfonated Cyanine7 NHS ester soluble in the organic phase is also available.

Chemical Properties

Appearance: Dark green solid
ex/em: 748/774 nm
Extinction coefficient (ε): 200,000 Lmol1cm1
Quantum yield (Φ): 0.24

Abs/Em Maxima

750/773 nm

Fluoresene quantum yield

0.24

Extinction Coefficient

240600

CF260

0.04

CF280

0.04