Cyanine5.5 hydrazide

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Cyanine5.5 hydrazide

标签:Cyanine5.5, Cy5.5,Hydrazides, Microscopy
货号 规格 价格 货期
17070 1 mg 110.00$ in stock
27070 5 mg 210.00$ in stock
47070 25 mg 410.00$ in stock
57070 50 mg 695.00$ in stock
67070 100 mg 1190.00$ in stock

Cyanine5.5 hydrazide is a carbonyl-reactive near infrared dye. Hydrazides quickly react with carbonyl compounds, such as aldehydes and ketones, and form stable hydrazones. This reaction is useful for the preparation of labeled conjugates.

Carbonyl groups in biomolecules can form spontaneously after oxidative stress or deamination of proteins. Alternatively, aldehyde groups can be specifically generated by periodate oxidation of sugar residues of glycoproteins, for example antibodies. Antibodies can be oxidized by sodium periodate and labeled with Cyanine5.5 hydrazide to form Cyanine5.5 labeled antibodies. Since sugar residues in antibodies are located far from variable, epitope-binding site, this method is particularly good for the labeling of antibodies.

Cyanine5.5 is a near infrared fluorophore, an analog of Cy5.5®. It is particularly suitable for the applications which require low fluorescence background. The absorption and emission wavelength of the dye exhibit significant tissue penetration, so Cyanine5.5 is suitable for in vivo NIR imaging applications.

Cy5.5 hydrazide 是一种羰基反应性近红外染料。酰肼与醛和酮等羰基化合物快速反应,形成稳定的腙。该反应可用于制备标记的偶联物。


Cy5.5 是一种近红外荧光团,是 Cy5.5® 的类似物。它特别适用于需要低荧光背景的应用。染料的吸收和发射波长表现出显着的组织穿透性,因此 Cy5.5 适用于体内近红外成像应用。

Cyanine5.5 absorbance and emission spectra

Cyanine5.5 hydrazide

Cyanine5.5 hydrazide相关产品

Cyanine7 azide

Near-infrared fluorescent dye for Click Chemistry.


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FAM azide, 5-isomer

FAM (fluorescein) azide for Click chemistry, pure 5-isomer.

用于点击化学的 FAM(荧光素)叠氮化物,纯 5 异构体。

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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.

Sulfo-Cy5.5 是一种远红/近红外荧光团,具有高亲水性和水溶性。 由于出色的摩尔消光系数,该染料在远红色区域显示出良好的亮度。 这是对亲电试剂有反应性的胺衍生物。 它也可用于酶促转氨标记。

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General properties

Appearance: dark blue powder 深蓝色粉末
Molecular weight: 669.73
Molecular formula: C40H46Cl2N4O
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.

储存:收到后 24 个月,在 -20°C 避光保存。 运输:在室温下长达 3 周。 避免长时间暴露在光线下。 干燥。

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


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  2. Zhao, Y.; Wang, Y.; Ran, F.; Cui, Y.; Liu, C.; Zhao, Q.; Gao, Y.; Wang, D.; Wang, S. A comparison between sphere and rod nanoparticles regarding their in vivo biological behavior and pharmacokinetics. Scientific Reports, 2017, 7, 4131. doi: 10.1038/s41598-017-03834-2
Cy® is a trademark of GE Healthcare.