sulfo-Cyanine5.5 tetrazine

Cat. # Quantity Price Lead time
173E0 1 mg $125 in stock
273E0 5 mg $325 in stock
473E0 25 mg $850 in stock
573E0 50 mg $1490 in stock
673E0 100 mg $1990 in stock
Found better price? Let us know and we will propose the way forward!

sulfo-Cyanine5.5 is a water-soluble, hydrophilic far-red fluorophore, an analog of Cy5.5®. Like other cyanine dyes, sulfo-Cyanine5.5 has an outstanding molar extinction coefficient, giving rise to its bright fluorescence. The molecule contains four sulfo groups that provide hydrophilicity and negative charge to the fluorophore and minimize non-specific binding.

This reagent contains tetrazine moiety that reacts with trans-cyclooctenes, cyclopropenes, and some strained cyclooctynes to form stable conjugates via an inverted electron demand [4+2]-cycloaddition (IEDDA).

The reagent possesses high aqueous solubility and hydrophilicity and is recommended for labeling biomolecules in an aqueous environment.

Absorption and emission spectra of sulfo-Cyanine5.5

Absorption and emission spectra of sulfo-Cyanine5.5

Customers also purchased with this product

sulfo-Cyanine5 tetrazine

Water soluble Cyanine dye tetrazine derivative for TCO ligation with trans-cyclooctenes and other strained olefines.

Cyanine5 tetrazine

Cyanine5 is a universal red emitting dye with a very high extinction coefficient, and good quantum yield. This tetrazine derivative reacts very quickly with trans-cyclooctenes and cyclopropenes with the formation of stable conjugates.

General properties

Appearance: dark blue powder
Molecular weight: 1200.53
Molecular formula: C50H48K3N7O13S4
Solubility: good in water, DMF, DMSO
Quality control: NMR 1H and HPLC-MS (95+%)
Storage conditions: 24 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Desiccate. Avoid prolonged exposure to light.
MSDS: Download
Product specifications

Spectral properties

Excitation/absorption maximum, nm: 673
ε, L⋅mol−1⋅cm−1: 211000
Emission maximum, nm: 691
Fluorescence quantum yield: 0.21
CF260: 0.09
CF280: 0.11
Your item has been added. View your cart or proceed to checkout
The count of items is incorrect.