Cyanine7 carboxylic acid

Cat. # Quantity Price Lead time
15090 1 mg $110.00 in stock
25090 5 mg $210.00 in stock
45090 25 mg $410.00 in stock
55090 50 mg $695.00 in stock
65090 100 mg $1190.00 in stock

Free unactivated Cyanine7 dye carboxylic acid. Near-infrared fluorescent dye.

For coupling and labeling reactions also consider using pre-activated Cyanine7 NHS ester, or water-soluble sulfo-Cyanine7 NHS ester.

Cyanine7 absorbance and emission spectra

Cyanine7 absorbance and emission spectra

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Sulfo-Cyanine5.5 amine

Sulfo-Cyanine5.5 is a far red/NIR fluorophore possessing high hydrophilicity and aqueous solubility. The dye displays good brightness in far red region due to outstanding molar extinction coefficient. This is amine derivative which is reactive towards electrophiles. It can also be used for enzymatic transamination labeling.

Cyanine7.5 NHS ester

Amine reactive NHS ester of NIR fluorescent dye Cyanine7.5.
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Sulfo-Cyanine5 NHS ester

Water-soluble Cyanine 5 succinimide ester.

General properties

Appearance: green powder
Molecular weight: 585.22
CAS number: 1628790-40-8 (chloride), 1628897-82-4 (without anion), 2241083-63-4 (inner salt)
Molecular formula: C37H45ClN2O2
IUPAC name: 3H-​Indolium, 2-​[2-​[3-​[2-​[1-​(5-​carboxypentyl)​-​1,​3-​dihydro-​3,​3-​dimethyl-​2H-​indol-​2-​ylidene]​ethylidene]​-​1-​cyclohexen-​1-​yl]​ethenyl]​-​1,​3,​3-​trimethyl-​, chloride
Solubility: soluble in organic solvents (DMSO, DMF, dichloromethane), low solubility in water
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: 750
ε, L⋅mol−1⋅cm−1: 199000
Emission maximum, nm: 773
CF260: 0.022
CF280: 0.029

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. Svenskaya, Y.I.; Genina, E.A.; Parakhonskiy, B.V.; Lengert, E.; Talnikova, E.E.; Terentyuk, G.S.; Utz, S.R.; Gorin, D.A.; Tuchin, V.V.; Sukhorukov, G. A simple non-invasive approach towards efficient transdermal drug delivery based on biodegradable particulate system. ACS Applied Materials & Interfaces, 2019, 11(19), 17270–17282. doi: 10.1021/acsami.9b04305
  3. Yang, C.; Liu, D.; Renny, A.; Kuttipillai, P.S.; Lunt, R.R. Integration of near-infrared harvesting transparent luminescent solar concentrators onto arbitrary surfaces. Journal of Luminescence, 2019, 210, 239–246. doi: 10.1016/j.jlumin.2019.02.042
  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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