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。
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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)
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