Di-8-ANEPPS, potentiometric probe
| 目录号 | 数量 | 价格 | 提前通知时间 | 购买此产品 |
|---|---|---|---|---|
| 4274-50ug | 50 ug | – | 现货 | |
| 4274-5mg | 5 mg | $238 | 现货 |
Di-8-ANEPPS is an Amino-Naphthyl-Ethenyl-Pyridinium (ANEP) family voltage-sensitive dye widely used as a fast-responding membrane potential probe. The dye is non-fluorescent until bound to membranes and fluoresces only in response to electrical potential fluctuations in its environment.
The optical response of Di-8-ANEPPS is fast enough to detect transient (millisecond) potential changes in excitable cells, such as single neurons, cardiac cells, and intact brains. The magnitude of potential-dependent fluorescence change is about 2-10% per 100 mV. The dye also displays a potential-dependent shift in excitation spectrum, permitting the quantitation of cell membrane potential using ratiometric techniques.
Di-8-ANEPPS has more lipophilic properties and is better retained in the outer leaflet of the cell membrane than other dyes of the ANEP family, making it well-suited for long-term experiments. Since Di-8-ANEPPS binds to the cell membrane, it can also be simply used as a plasma membrane marker.
Excitation/emission maxima of Di-8-ANEPPS in methanol are 498/713 nm, respectively. In lipids and cell membranes, the excitation and emission spectra of the dye are typically blue-shifted compared to organic solvent.
Di-8-ANEPPS can be introduced into cells by directly adding the stock solution to the culture medium, using Pluronic® F-127, or retrograde labeling. Use a 5-10 μM working concentration as a starting point. The exact dye concentration should be defined experimentally.
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| Appearance: | red solid |
| Molecular weight: | 592.89 |
| CAS number: | 157134-53-7 |
| Molecular formula: | C36H52N2O3S |
| Solubility: | ethanol, DMSO, DMF |
| Quality control: | NMR 1H and HPLC-MS (95+%) |
| Storage conditions: | 24 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Desiccate. |
| 安全数据表（MSDS）: | 下载 |
| 产品规格 |
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