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- Reactive dyes
- Dye hydrazides
- Cyanine7 hydrazide
Cyanine7 hydrazide
| 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相关产品
Cyanine3 carboxylic acid
Free Cyanine3 carboxylic acid.
游离Cy3羧酸。
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 |
相关文献：
- 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