sulfo-Cyanine5.5 amine

Cat. # Quantity Price Lead time
173C0 1 mg $125 in stock
273C0 5 mg $285 in stock
473C0 25 mg $680 in stock
573C0 50 mg $1260 in stock
673C0 100 mg $1990 in stock
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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, rendering 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 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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Cyanine7.5 carboxylic acid

Cyanine7.5 - unactivated NIR cyanine dye carboxylic acid.
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Cyanine5 carboxylic acid

Cyanine5 carboxylic acid, unactivated 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. Gao, W.; He, J.; Chen, L.; Meng, X.; Ma, Y.; Cheng, L.; Tu, K.; Gao, X.; Liu, C.; Zhang, M.; Fan, K.; Pang, D.-W.; Yan, X. Deciphering the Catalytic Mechanism of Superoxide Dismutase Activity of Carbon Dot Nanozyme. Nature Communications, 2023, 14(1), 160. doi: 10.1038/s41467-023-35828-2
  2. Shevchuk, A. I.; Svinko, V. O.; Smirnov, A. N.; Solovyeva, E. V. SERS Study of Cyanine Dyes: Optimization of Metal Core and Molecular Label Choice for Plasmonic Nanotags. Dyes and Pigments, 2023, 216, 111329. doi: 10.1016/j.dyepig.2023.111329.
  3. Wang, D.; Li, Y.; Deng, X.; Torre, M.; Zhang, Z.; Li, X.; Zhang, W.; Cullion, K.; Kohane, D. S.; Weldon, C. B. An Aptamer-Based Depot System for Sustained Release of Small Molecule Therapeutics. Nature Communications, 2023, 14(1), 2444. doi: 10.1038/s41467-023-37002-0
  4. Zha, H.; Xu, Z.; Xu, X.; Lu, X.; Shi, P.; Xiao, Y.; Tsai, H.-I.; Su, D.; Cheng, F.; Cheng, X.; Chen, H. PD-1 Cellular Nanovesicles Carrying Gemcitabine to Inhibit the Proliferation of Triple Negative Breast Cancer Cell. Pharmaceutics, 2022, 14(6), 1263. doi: 10.3390/pharmaceutics14061263
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