Sulfo-Cyanine5 NHS ester

sulfo-Cyanine5 NHS esters Microscopy
Cat. # Quantity Price Lead time
13320 1 mg $110.00 in stock
23320 5 mg $290.00 in stock
43320 25 mg $690.00 in stock
53320 50 mg $1270.00 in stock
63320 100 mg $1990.00 in stock
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Water soluble Cyanine 5 succinimidyl ester (SE), an equivalent of Cy5® NHS ester, for the labeling of various amine-containing molecules in aqueous phase without use of any organic co-solvent. This product is therefore particularly useful for the labeling of proteins which denature in the presence of organic co-solvents, as well as for proteins with low solubility.

Sulfo-Cyanine 5 is an analog of Cy5®, one of the most popular fluorophores which is compatible with various equipment such as plate readers, microscopes, and imagers.

This dye is highly hydrophilic and water-soluble. A non-sulfonated analog is also available.

Can be used as a replacement for Cy5®, Alexa Fluor 647, DyLight 649 for all applications.

Sulfo-Cyanine5 NHS ester
Sulfo-Cyanine5 NHS ester
Sulfo-Cyanine5 NHS ester
Cy5 NHS ester structure
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Sulfo-Cyanine 5 absorbance and emission spectra

Sulfo-Cyanine 5 absorbance and emission spectra

Recommended protocol

NHS ester labeling of amino biomolecules

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Sulfo-Cyanine7 azide

Water-soluble NIR fluorescent dye azide for Click chemistry

DBCO NHS ester

Azodibenzocyclooctyne (DBCO, ADIBO) reagent for strain promoted copper free Click chemistry (spAAC). The reagent contains an NHS ester function for the attachment of the cyclooctyne to various molecules.

Cyanine5 DBCO

Cyanine5 dye with dibenzocyclooctyne (DBCO) functional group for copper free Click chemistry.

General properties

Appearance: dark blue powder
Molecular weight: 777.95
Molecular formula: C36H40N3KO10S2
Solubility: very good in water, good in DMF and DMSO
Quality control: NMR 1H, HPLC-MS (95%)
Storage conditions: Storage: 12 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Avoid prolonged exposure to light. Desiccate.
MSDS: Download

Spectral properties

Excitation maximum, nm: 646
ε, L⋅mol−1⋅cm−1: 271000
Emission maximum, nm: 662
Fluorescence quantum yield: 0.28
CF260: 0.04
CF280: 0.04

Product citations

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