Sulfo-Cyanine5 carboxylic acid

Cat. # Quantity Price Lead time
13390 1 mg $110.00 in stock
23390 5 mg $210.00 in stock
43390 25 mg $410.00 in stock
53390 50 mg $695.00 in stock
63390 100 mg $1190.00 in stock

Non-activated sulfo-Cyanine5 carboxylic acid, water soluble dye. This dye is highly hydrophilic and water-soluble. Non-sulfonated analog is available.

The fluorophore is an equivalent of Cy5® carboxylic acid.

For labeling applications consider using pre-activated sulfo-Cy5 NHS ester

Sulfo-Cyanine5 absorbance and emission spectra

Sulfo-Cyanine5 absorbance and emission spectra

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A water soluble near infrared emitting dye for in vivo imaging applications. Sulfo-Cyanine7.5 is an analog of indocyanine green (ICG) possessing higher emission quantum yield, and containing a linker arm.

Cyanine5.5 maleimide

Cyanine5.5 maleimide is a thiol reactive dye for protein labeling.
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Cyanine5.5 alkyne

Cyanine5.5 alkyne is a NIR (near infrared) dye azide for both copper-catalyzed, and copper-free Click Chemistry.

General properties

Appearance: dark blue powder
Molecular weight: 680,87
CAS number: 1144107-82-3 (potassium salt), 1121756-16-8 (inner salt), 2098639-31-5 (sodium salt)
Molecular formula: C32H37N2KO8S2
Solubility: Well soluble in water, DMF, DMSO (0.35 M = 240 g/L). Practically insoluble in non-polar organic solvents.
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.
MSDS: Download
Product specifications

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

  1. Matoori, S.; Mooney, D.J. Near-Infrared Fluorescence Hydrogen Peroxide Assay for Versatile Metabolite Biosensing in Whole Blood. Small, 2020, 16(20), 2000369. doi: 10.1002/smll.202000369
  2. Pfister, J.; Summer, D.; Petrik, M.; Khoylou, M.; Lichius, A.; Kaeopookum, P.; Kochinke, L.; Orasch, T.; Haas, H.; Decristoforo, C. Hybrid Imaging of Aspergillus fumigatus Pulmonary Infection with Fluorescent, 68Ga-Labelled Siderophores. Biomolecules, 2020, 10, 168. doi: 10.3390/biom10020168
  3. He, X.; Yuan, Z.; Kao, W.; Miller, D.; Li, S.K.; Park, Y.C. Size-Exclusive Nanoporous Biodegradable PLGA Capsules for Drug Delivery Implants and In Vivo Stability in the Posterior Segment. ACS Applied Bio Materials, 2020, 3(3), 1722–1729. doi: 10.1021/acsabm.0c00027
  4. Ecke, M.; Prassler, J.; Tanribil, P.; Müller-Taubenberger, A.; Körber, S.; Faix, J.; Gerisch, G. Formins specify membrane patterns generated by propagating actin waves. Molecular Biology of the Cell, 2020, 31(5), 373–385. doi: 10.1091/mbc.E19-08-0460
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