Sulfo-Cyanine7 carboxylic acid

Cat. # Quantity Price Lead time
15390 1 mg $110.00 in stock
25390 5 mg $290.00 in stock
45390 25 mg $690.00 in stock
55390 50 mg $1270.00 in stock
65390 100 mg $1990.00 in stock

Sulfo-Cyanine7 carboxylic acid is non-reactive water soluble near infrared dye.

The reagent is useful as a fluorescent marker in NIR range when attachment to other molecules is not desired. It has high hydrophilicity and aqueous solubility, improved quantum yield in NIR range, and 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 absorbance and emission spectra

Sulfo-Cyanine7 absorbance and emission spectra

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Cyanine3.5 carboxylic acid

Unactivated monofunctional Cy3.5 carboxylic acid.

Cyanine5.5 hydrazide

Cyanine5.5 hydrazide is a carbonyl reactive NIR dye which is particularly suitable for the labeling of periodate oxidized glycoproteins, i.e. antibodies.

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
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 maximum, nm: 750
ε, L⋅mol−1⋅cm−1: 240600
Emission maximum, nm: 773
CF260: 0.04
CF280: 0.04

Product citations

  1. 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
  2. Luthman, A.S.; Dumitru, S.; Quiros-Gonzalez, I.; Joseph, J.; Bohndiek, S.E. Fluorescence hyperspectral imaging (fHSI) using a spectrally resolved detector array. Journal of Biophotonics, 2017, 10(6–7), 840–853. doi: 10.1002/jbio.201600304
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