sulfo-Cyanine7 carboxylic acid

sulfo-Cyanine7 Carboxylic acids Near infrared (NIR) imaging
Cat. # Quantity Price Lead time
15390 1 mg
$125
 in stock
25390 5 mg
$325
 in stock
45390 25 mg
$850
 in stock
55390 50 mg
$1490
 in stock
65390 100 mg
$1990
 in stock
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sulfo-Cyanine7 carboxylic acid is a non-reactive water-soluble near-infrared dye.

The reagent is useful as a fluorescent marker in the NIR range when attachment to other molecules is not desired. It has high hydrophilicity and aqueous solubility, improved quantum yield in the NIR range, and a very high molar extinction coefficient.

This reagent contains free carboxylic acid function. Pre-activated activated ester - sulfo-Cyanine7 NHS ester is also available.

Sulfo-Cyanine7 carboxylic acid, 65390
Sulfo-Cyanine7 carboxylic acid, 65390
Sulfo-Cyanine7 carboxylic acid, 65390
Sulfo-Cyanine7 carboxylic acid
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Sulfo-Cyanine7 absorbance and emission spectra

Sulfo-Cyanine7 absorbance and emission spectra

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sulfo-Cyanine7.5 azide

sulfo-Cyanine7.5 is a very hydrophilic and water-soluble dye for the near-infrared region. The absorption and emission spectra of the dye are similar to Indocyanine Green (ICG), but sulfo-Cyanine7.5 has a much higher fluorescence quantum yield. The dye is a great choice for near-infrared in vivo imaging. This is an azide for click chemistry.

General properties

Appearance: dark green powder
Molecular weight: 746.97
CAS number: 2104632-29-1 (inner salt); 2104632-30-4 (sodium salt)
Molecular formula: C37H43N2KO8S2
Solubility: Soluble in water, DMF, DMSO (0.10 M = 76 g/L). Practically insoluble in non-polar organic solvents.
Quality control: NMR 1H, HPLC (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/absorption maximum, nm: 750
ε, L⋅mol−1⋅cm−1: 240600
Emission maximum, nm: 773
Fluorescence quantum yield: 0.24
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. Summer, D.; Petrik, M.; Mayr, S.; Hermann, M.; Kaeopookum, P.; Pfister, J.; Klingler, M.; Rangger, C.; Haas, H.; Decristoforo, C. Hybrid Imaging Agents for Pretargeting Applications Based on Fusarinine C—Proof of Concept. Molecules, 2020, 25(9), 2123. doi: 10.3390/molecules25092123
  4. Luthman, A.S. Wide-Field fHSI with a Linescan SRDA. In: Spectrally Resolved Detector Arrays for Multiplexed Biomedical Fluorescence Imaging (Springer Thesis), 2018, 51–85. doi: 10.1007/978-3-319-98255-7_3
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