所有图片(4)
About This Item
经验公式(希尔记法):
C6H12NNaO4S
CAS号:
分子量:
217.22
Beilstein:
3765682
EC號碼:
MDL號碼:
分類程式碼代碼:
12161700
eCl@ss:
32129211
PubChem物質ID:
NACRES:
NA.25
推荐产品
產品線
BioReagent
品質等級
化驗
≥99% (titration)
形狀
crystalline
pH值
8.9-10.1 (1% in water)
有用的pH值範圍
5.5-6.7
pKa
6.1
溶解度
water: 0.5 g/mL, clear, colorless
應用
diagnostic assay manufacturing
儲存溫度
room temp
SMILES 字串
[Na+].[O-]S(=O)(=O)CCN1CCOCC1
InChI
1S/C6H13NO4S.Na/c8-12(9,10)6-3-7-1-4-11-5-2-7;/h1-6H2,(H,8,9,10);/q;+1/p-1
InChI 密鑰
IRHWMYKYLWNHTL-UHFFFAOYSA-M
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一般說明
MES是针对生物应用而开发的“良好”缓冲液之一。该产品经过痕量离子测试。采用氢氧化钠滴定游离酸至目标pH (pKa=±-1),可以制备含MES游离酸的缓冲液。另外,将MES 游离酸和MES钠盐的等摩尔溶液混合起来,可以得到目标pH。采用储备溶液制备给定pH缓冲液所需的标准品混合表已经公布。
應用
MES钠盐已被用于:
- 在含基因组DNA的琼脂糖块融化的过程中使DNA纤维达到目标密度和拉伸性
- 平衡均质机的样品室,并防止样品在均质之前水解
準備報告
MES 钠溶于水,50毫升水可溶解25克形成无色透明溶液(大约2.3M)。根据浓度不同,溶液的pH应当在9和10之间。溶液在2-8°C 下应当可稳定储存数月。灭菌应通过 0.2μm过滤器过滤完成。不建议用高压蒸汽灭菌。如果缓冲液必须不含核酸酶,则最好的做法是先对水进行处理,然后在高压蒸汽灭菌后添加缓冲液固体。MES溶液在高压蒸汽灭菌时会变成黄色(尽管pH没有出现可测量的变化)。黄色分解产物是未知的物质。
其他說明
便于将 MES 钠盐产品的规格与 MES 钠盐规格表进行比较。
儲存類別代碼
13 - Non Combustible Solids
水污染物質分類(WGK)
WGK 1
閃點(°F)
Not applicable
閃點(°C)
Not applicable
個人防護裝備
Eyeshields, Gloves, type N95 (US)
其他客户在看
Dawson, RMC et al.
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The performance of the most common and also some other less common CE buffers has been tested for the pKa determination of several types of compounds (pyridine, amines, and phenols). The selected buffers cover a pH ranging from 3.7 to
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