Sulfo-Cyanine5.5 carboxylic acid

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 in stock

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 absorption and emission spectra

Sulfo-Cyanine5.5 absorption and emission spectra

Customers also purchased with this product

BDP FL NHS ester

Amino-reactive BDP FL, a very bright and photostable dye for fluorescein channel.
Add this product to your cart and
get free express delivery

DBCO NHS ester

Azodibenzocyclooctyne (DBCO, ADIBO) reagent for strain promoted copper free Click chemistry (spAAC). The reagent contains an NHS ester function for the attachment of the cyclooctyne to various molecules.

ROX reference dye for qPCR

ROX is a passive reference dye for qPCR amplification. The dye can be used to normalize fluorescence intensity of reporter dye in qPCR.

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 maximum, nm: 673
ε, L⋅mol−1⋅cm−1: 235000
Emission maximum, nm: 691
CF260: 0.09
CF280: 0.11

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. 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
  3. 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
Your item has been added. View your cart or proceed to checkout
The count of items is incorrect.