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折扣/货期| 货号：CDX-Z0509-M001 | 规格：1 mg | 目录价：￥6930 |
产品详情
产品名称:
ZnAF-1F Solution
别名:
5-{2-[Bis(2-pyridylmethyl)amino]ethylamino}-2′,7′-difluorofluorescein
产品描述:
ZnAF-1F and ZnAF-2F do not fluoresce in the presence of other biologically important cations such as Ca2+ and Mg2+, and are insensitive to change of pH. The complexes with Zn2+ of previously developed ZnAFs, ZnAF-1, and ZnAF-2 decrease in fluorescence intensity below pH 7.0 owing to protonation of the phenolic hydroxyl group of fluorescein, whose pKa value is 6.2. On the other hand, the Zn2+ complexes of ZnAF-1F and ZnAF-2F emit stable fluorescence under neutral and slightly acidic conditions because the pKa values are shifted to 4.9 by substitution of electron-withdrawing fluorine at the ortho position of the phenolic hydroxyl group. Spectral data: lambdaex 492nm; lambdaem 517nm in PBS.
宿主来源:
Synthetic.
产品浓度:
5mM in DMSO (1mg in 0.33ml DMSO)
保存温度:
-20°C
运输温度:
Ambient
预期分子量:
608.59
产品形式:
liquid
有效期:
Stable for at least 2 years after receipt when stored at -20°C.
产地:
瑞士
纯度:
>90% (HPCE)
CAS号:
443302-08-7
分子式:
C34H26F2N4O5
溶解度:
Soluble in DMSO.
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