Cyanine5.5 amine

Cyanine5.5 Amines

Cat. #	Quantity	Price	Lead time
170C0	1 mg	$159.90	in stock
270C0	5 mg	$299.90	in stock
470C0	25 mg	$579.90	in stock
570C0	50 mg	$889.90	in stock
670C0	100 mg	$1499.00	in stock

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Cyanine5.5 (Cy5.5® analog) amine derivative. The dye contains a free amine group which can be conjugated with a variety of functionalities, including NHS esters, and epoxides.

Cyanine5.5 is a far red dye which works fine for live organism imaging, and applications requiring low fluorescence background.

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Cy5.5 absorbance and emission spectra

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General properties

Appearance:	dark blue powder
Molecular weight:	753.88
CAS number:	2097714-44-6 (without anion), 2097714-45-7 (chloride)
Molecular formula:	C₄₆H₅₈Cl₂N₄O
Solubility:	practically insoluble in water (< 2 uM), good in polar organic solvents (DMF, DMSO, alcohols)
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:	684
ε, L⋅mol⁻¹⋅cm⁻¹:	198000
Emission maximum, nm:	710
Fluorescence quantum yield:	0.2
CF₂₆₀:	0.07
CF₂₈₀:	0.03

Product citations

He, M.; Chen, X.; Yu, F.; Qin, B.; Wang, H.; Lavery, L.; Villanueva, F. S. Enhanced Antitumor Efficacy and Reduced Cardiotoxicity of Ultrasound-Mediated Doxorubicin Delivery by Microbubble-Liposome Complexes. Ultrasound in Medicine & Biology, 2025, 51(8), 1240–1249. doi: 10.1016/j.ultrasmedbio.2025.04.010
Park, B.; Park, D.; Jang, H.; Ko, Y. S.; Lee, H. Y.; Choi, Y. E.; Choi, J.; Oh, S. W.; Jo, S.-K.; Kim, S. H.; Kim, Y.; Lee, S.; Kim, K.; Kim, M.-G.; Yang, Y.; Shim, M. K. Repurposing Mesalamine for Acute Kidney Injury through Supramolecular Assembly. Journal of Controlled Release, 2025, 385, 114041. doi: 10.1016/j.jconrel.2025.114041
Schvartzman, C.; Ibarboure, E.; Martin, A.; Garanger, E.; Mutschler, A.; Lecommandoux, S. Protocells Featuring Membrane-Bound and Dynamic Membraneless Organelles. Biomacromolecules, 2024, 25(7), 4087–4094. doi: 10.1021/acs.biomac.4c00200
Grosmanová, E.; Pola, R.; Filipová, M.; Henry, M.; Coll, J.‐L.; Etrych, T. Novel strategies for enhanced fluorescence visualization of glioblastoma tumors based on HPMA copolymers conjugated with tumor targeting and/or cell‐penetrating peptides. VIEW, 2024, 5(3), 20230116. doi: 10.1002/viw.20230116

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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.