Cyanine5 carboxylic acid

Cyanine5 Carboxylic acids

Cat. #	Quantity	Price	Lead time
13090	1 mg	$110	in stock
23090	5 mg	$210	in stock
43090	25 mg	$410	in stock
53090	50 mg	$695	in stock
63090	100 mg	$1190	in stock

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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.

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Cyanine5 absorbance and emission spectra

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General properties

Appearance:	dark golden solid
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

Tchatchiashvilli, T.; Duering, H.; Mueller-Boetticher, L.; Grune, C.; Fischer, D.; Pletz, M.W.; Makarewicz, O. PEG-PLGA nanoparticles deposited in Pseudomonas aeruginosa and Burkolderia cenocepacia. Journal of Pharmaceutical Analysis, 2024, 14(12), 100939. doi: 10.1016/j.jpha.2024.01.007
Yao, P.; Wang, X.; Wang, Q.; Dai, Q.; Peng, Y.; Yuan, Q.; Mou, N.; Lv, S.; Weng, B.; Wang, Y.; Sun, F. Cyclic RGD-Functionalized PH/ROS Dual-Responsive Nanoparticle for Targeted Breast Cancer Therapy. Pharmaceutics, 2023, 15(7), 1827. doi: 10.3390/pharmaceutics15071827
Lu, Y.; Zhou, J.; Wang, Q.; Cai, J.; Yu, B.; Dai, Q.; Bao, Y.; Chen, R.; Zhang, Z.; Zhang, D.; Hou, T. Glucocorticoid-Loaded PH/ROS Dual-Responsive Nanoparticles Alleviate Joint Destruction by Downregulating the NF-ΚB Signaling Pathway. Acta Biomaterialia, 2023, 164, 458–473. doi: 10.1016/j.actbio.2023.04.012
Rezaei, S.; de Araújo Júnior, R. F.; da Silva, I. L. G.; Schomann, T.; Eich, C.; Cruz, L. J. Erythrocyte−cancer Hybrid Membrane-Coated Reduction-Sensitive Nanoparticles for Enhancing Chemotherapy Efficacy in Breast Cancer. Biomaterials Advances, 2023, 151, 213456. doi: 10.1016/j.bioadv.2023.213456

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Cy® is a trademark of GE Healthcare.

This Product is offered and sold for research purposes only. It has not been tested for safety and efficacy in food, drug, medical device, cosmetic, commercial or any other use. Supply does not express or imply authorization to use for any other purpose, including, without limitation, in vitro diagnostic purposes, in the manufacture of food or pharmaceutical products, in medical devices or in cosmetic products.