Sulfo-Cyanine5.5 carboxylic acid

Carboxylic acids sulfo-Cyanine5.5
Cat. # Quantity Price Lead time
17390 1 mg $110.00 in stock
27390 5 mg $290.00 in stock
47390 25 mg $690.00 in stock
57390 50 mg $1190.00 in stock
67390 100 mg $1850.00 5 days
Bulk inquiry

Sulfo-Cyanine5.5 (analog of Cy5.5®) is a water-soluble, far red emitting fluorophore. Due to four sulfo-groups, the dye possesses negative charge in neutral pH, and very high hydrophilicity.

As a cyanine dye, sulfo-Cyanine5.5 shows very low dependence of the fluorescence on pH, and very high extinction coefficient.

Sulfo-Cyanine5.5 carboxylic acid, 67390
Sulfo-Cyanine5.5 carboxylic acid, 67390
Sulfo-Cyanine5.5 carboxylic acid, 67390
Structure of Sulfo-Cyanine5.5 carboxylic acid
Download in
ChemDraw format

Sulfo-Cyanine5.5 absorption and emission spectra

Sulfo-Cyanine5.5 absorption and emission spectra

Customers also purchased with this product

BDP TR alkyne

BDP TR is a fluorophore for ROX channel. This borondipyrromethene dye is very bright, and resistant to oxidation.

Cyanine5 azide

Cyanine5 azide is a reagent for Click Chemistry labeling with Cyanine5, a popular fluorescent dye.

Cyanine7.5 NHS ester

Amine reactive NHS ester of NIR fluorescent dye Cyanine7.5.
Add this product to your cart and
get free express delivery

General properties

Appearance: dark blue solid
Molecular weight: 1017.31
CAS number: 2183440-68-6 (inner salt)
Molecular formula: C40H39K3N2O14S4
Solubility: Well soluble in water, DMF, DMSO (0.39 M = 400 g/L)
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. So, I.-S.; Kang, J.H.; Hong, J.W.; Sung, S.; Hasan, A.F.; Sa, K.H.; Han, S.W.; Kim, I.S.; Kang, Y.M. A novel apoptosis probe, cyclic ApoPep-1, for in vivo imaging with multimodal applications in chronic inflammatory arthritis. Apoptosis, 2021, 26(3–4), 209–218. doi: 10.1007/s10495-021-01659-z
  2. 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
  3. Rodríguez-Hakim, M.; Anand, S.; Tajuelo, J.; Yao, Z.; Kannan, A.; Fuller, G.G. Asphaltene-induced spontaneous emulsification: Effects of interfacial co-adsorption and viscoelasticity. Journal of Rheology, 2020, 64(4), 799–816. doi: 10.1122/1.5145307
  4. Wild, A.R.; Sinnen, B.L.; Dittmer, P.J.; Kennedy, M.J.; Sather, W.A.; Dell'Acqua, M.L. Synapse-to-Nucleus Communication through NFAT Is Mediated by L-type Ca2+ Channel Ca2+ Spike Propagation to the Soma. Cell Reports, 2019, 26, 3537–3550.e4. doi: 10.1016/j.celrep.2019.03.005
Cy® is a trademark of GE Healthcare.
Your item has been added. View your cart or proceed to checkout
The count of items is incorrect.