Sulfo-Cyanine5.5 amine

Cat. # Quantity Price Lead time
173C0 1 mg $110.00 in stock
273C0 5 mg $290.00 in stock
473C0 25 mg $690.00 in stock
573C0 50 mg $1190.00 in stock
673C0 100 mg $1850.00 in stock

Sulfo-Cyanine5.5 is a water soluble cyanine dye for far red / NIR applications such as in vivo imaging. The dye possesses four sulfonate groups that render it highly hydrophilic and water soluble. As well as other cyanines, sulfo-Cyanine5.5 has an outstanding extinction coefficient that makes it a bright fluorescent label for the far red region.

This is an amine-containing fluorescent dye. The amine group is separated from the fluorophore by a relatively long linker that facilitates conjugation. The aliphatic primary amine group can be coupled with various electrophiles (activated esters, epoxides, etc), and also be used in enzymatic transamination labeling.

Absorption and emission spectra of sulfo-Cyanine5.5 fluorophore

Absorption and emission spectra of sulfo-Cyanine5.5 fluorophore

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Sulfo-Cyanine5.5 NHS ester

Water soluble, sulfonated, far-red sulfo-Cyanine5.5 dye in the form of NHS ester.

Biotin-PEG3-Azide

Biotin azide is a reagent for click chemistry labeling with biotin, a well-known affinity probe.

Cyanine5.5 carboxylic acid

Cy5.5 unactivated free acid cyanine dye.

General properties

Appearance: dark blue solid
Molecular weight: 1077.41
CAS number: 2183440-46-0
Molecular formula: C46H54K2N4O13S4
IUPAC name: (E)-4-[(2E,4E)-5-{5-[6-(6-Aminohexylamino)-6-oxohexyl]-3,3-dimethyl-10,12-bis(oxysulfonyl)-5-azatricyclo[7.4.0.02,6]trideca-1,4,6,8,10,12-hexaen-4-yl}-2,4-pentadienylidene]-3,3-dimethyl-5-methyl-5-azatricyclo[7.4.0.02,6]trideca-1,6,8,10,12-pentaene-10,12-disulfonic acid dipotassium salt
Solubility: good in water, DMF, DMSO
Quality control: NMR 1H, HPLC-MS (95%)
Storage conditions: Storage: 24 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
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

Product citations

  1. Khatri, S.; Hansen, J.; Mendes, A.C.; Chronakis, I.S.; Hung, S.-C.; Mellins, E.D.; Astakhova, K. Citrullinated Peptide Epitope Targets Therapeutic Nanoparticles to Human Neutrophils. Bioconjugate Chemistry, 2019, 30(10), 2584–2593. doi: 10.1021/acs.bioconjchem.9b00518
  2. Malinovskaya, Y.; Melnikov, P.; Baklaushev, V.; Gabashvili, A.; Osipova, N.; Mantrov, S.; Ermolenko, Y.; Maksimenko, O.; Gorshkova, M.; Balabanyan, V.; Kreuter, J.; Gelperina, S. Delivery of doxorubicin-loaded PLGA nanoparticles into U87 human glioblastoma cells. International Journal of Pharmaceutics, 2017, 524(1–2), 77–90. doi: 10.1016/j.ijpharm.2017.03.049
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