Cyanine7 hydrazide

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Cyanine7 hydrazide

标签:Cyanine7,Cy7, Hydrazides, Near infrared (NIR) imaging
货号 规格 价格 货期
15070 1 mg 110.00$ in stock
25070 5 mg 210.00$ in stock
45070 25 mg 410.00$ in stock
55070 50 mg 695.00$ in stock
65070 100 mg 1190.00$ in stock

Hydrazide derivative of Cyanine7, a NIR fluorescent dye, an analog of Cy7®.

This variety of heptamethine fluorophore contains a six-membered ring rigidizing the polymethine chain which allows to increase quantum yield by 20% compared to parent structure.

Hydrazide reacts quickly and smoothly with aldehydes and ketones yielding stable hydrazone products. This reaction is also good for the labeling of glycoproteins after periodate oxidation.

Cy7 的酰肼衍生物,一种 NIR 荧光染料,是 Cy7® 的类似物。

这种七次甲基荧光团包含一个六元环,使聚次甲基链刚性化,与母体结构相比,量子产率提高了 20%。

酰肼与醛类和酮类反应迅速而平稳,产生稳定的腙产物。 该反应也有利于高碘酸氧化后糖蛋白的标记。

Cyanine7 absorbance and emission spectra

Cyanine7 hydrazide

Cyanine7 hydrazide相关产品

Cyanine3 carboxylic acid

Free Cyanine3 carboxylic acid.


Cyanine5.5 NHS ester

Cyanine5.5 NHS is far-red / near-infrared amine-reactive dye.

Cy5.5 NHS 是远红/近红外胺活性染料。

Cyanine5.5 maleimide

Cyanine5.5 maleimide is a thiol reactive dye for protein labeling.

Cy5.5 马来酰亚胺是一种用于蛋白质标记的硫醇活性染料。

General properties

Appearance: green powder 绿色粉末
Mass spec M+ increment: 544.8
Molecular weight: 635.70
CAS number: 2183440-61-9 (without anion)
Molecular formula: C37H48Cl2N4O
Solubility: moderate solubility in water, 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: 750
ε, L⋅mol−1⋅cm−1: 199000
Emission maximum, nm: 773
Fluorescence quantum yield: 0.3
CF260: 0.022
CF280: 0.029


  1. Lix, K.; Krause, K.D.; Kim, H.; Algar, W.R. Investigation of the Energy Transfer Mechanism Between Semiconducting Polymer Dots and Organic Dyes. Journal of Physical Chemistry C, 2020, 124(31), 17387–17400. doi: 10.1021/acs.jpcc.0c04983
Cy® is a trademark of GE Healthcare.