Cyanine5 carboxylic acid

Cat. # Quantity Price Lead time
13090 1 mg $110.00 in stock
23090 5 mg $210.00 in stock
43090 25 mg $410.00 in stock
53090 50 mg $695.00 in stock
63090 100 mg $1190.00 in stock

Non-activated carboxylic acid, an analog of Cy5® free carboxylic acid. Contains Cyanine5 fluorophore.

This dye has limited water solubility, but can be dissolved in mixtures of water with organic phase (DMF, DMSO, alcohols) to obtain useful concentrations of the material in solution. Water-soluble version is available.

This molecule can be considered non-reactive dye for the use in control samples, and for instrument calibration. For coupling with amines and protein labeling, consider using Cyanine5 NHS ester, or water-soluble sulfo-Cyanine5 NHS ester.

Cyanine5 absorbance and emission spectra

Cyanine5 absorbance and emission spectra

Customers also purchased with this product

Sulfo-Cyanine7 carboxylic acid

Sulfo-Cy7 carboxylic acid is a non-reactive fluorescent dye which can be used as a NIR (near infrared) marker.

Sulfo-Cyanine3 NHS ester

Water soluble sulfo-Cyanine3 SE activated ester for amino-biomolecule labeling.

Pyrenebutyric acid NHS ester

Pyrene NHS ester for the labeling of biomolecules with pyrene residue. Pyrene is a fluorescent proximity probe which forms excimers, and it is also an anchor group for graphite immobilization.

General properties

Appearance: dark blue powder
Molecular weight: 519.12
CAS number: 1032678-07-1 (chloride), 195867-59-5 (inner salt), 766503-38-2 (without anion)
Molecular formula: C32H39ClN2O2
IUPAC name: 3H-​Indolium, 2-​[5-​[1-​(5-​carboxypentyl)​-​1,​3-​dihydro-​3,​3-​dimethyl-​2H-​indol-​2-​ylidene]​-​1,​3-​pentadien-​1-​yl]​-​1,​3,​3-​trimethyl-​, chloride
Solubility: soluble in organic solvents (DMF, DMSO, dichloromethane), very poorly soluble in water (0.25 mM, 130 mg/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: 646
ε, L⋅mol−1⋅cm−1: 250000
Emission maximum, nm: 662
Fluorescence quantum yield: 0.2
CF260: 0.03
CF280: 0.04

Product citations

  1. Petrov, R.A.; Mefedova, S.R.; Yamansarov, E.Y.; Maklakova, S.Y.; Grishin, D.A.; Lopatukhina, E.V.; Burenina, O.Y.; Lopukhov, A.V.; Kovalev, S.V.; Timchenko, Y.V.; Ondar, E.E.; Ivanenkov, Y.A.; Evteev, S.A.; Vaneev, A.N.; Timoshenko, R.V.; Klyachko, N.L.; Erofeev, A.S.; Gorelkin, P.V.; Beloglazkina, E.K.; Majouga, A.G. New Small-Molecule Glycoconjugates of Docetaxel and GalNAc for Targeted Delivery to Hepatocellular Carcinoma. Molecular Pharmaceutics, 2021, 18(1), 461–468. doi: 10.1021/acs.molpharmaceut.0c00980
  2. Wang, Y.; Goun, A.; Laforge, F.; Quine, Z.; Rabitz, H. A key bidirectional switching issue in optogenetics emulated with laser dyes to illustrate its mitigation using nonlinear optical tools. Applied Physics Letters, 2021, 118(2), 024101. doi: 10.1063/5.0035183
  3. Pfister, J.; Lichius, A.; Summer, D.; Haas, H.; Kanagasundaram, T.; Kopka, K.; Decristoforo, C. Live-cell imaging with Aspergillus fumigatus-specific fluorescent siderophore conjugates. Scientific Reports, 2020, 10, 15519. doi: 10.1038/s41598-020-72452-2
  4. Reshitko, G.S.; Yamansarov, E.Y.; Evteev, S.A.; Lopatukhina, E.V.; Shkil', D.O.; Saltykova, I.V.; Lopukhov, A.V.; Kovalev, S.V.; Lobov, A.N.; Kislyakov, I.V.; Burenina, O.Y.; Klyachko, N.L.; Garanina, A.S.; Dontsova, O.A.; Ivanenkov, Y.A.; Erofeev, A.S.; Gorelkin, P.V.; Beloglazkina, E.K.; Majouga, A.G. Synthesis and Evaluation of New Trivalent Ligands for Hepatocyte Targeting via the Asialoglycoprotein Receptor. Bioconjugate Chemistry, 2020, 31(5), 1313–1319. doi: 10.1021/acs.bioconjchem.0c00202
Show more (14)
Your item has been added. View your cart or proceed to checkout
The count of items is incorrect.