Synonyms: HEPES sodium salt, or 4-(2-hydroxyethyl)piperazine-1-ethanesulfonic acid sodium salt, or N-(2-hydroxyethyl)piperazine-N′-(2-ethanesulfonic acid) sodium salt
C₈H₁₇N₂NaO₄S
M_r 260.29
CAS [75277-39-3]
EC Number 278-169-7
MDL Number MFCD00036463
PubChem Substance ID 24895780
pKa 7.5 at 25°C
Useful pH Range of HEPES sodium: 6.6 – 8.2

HR2-733 is titrated to pH 7.5 using HCl
HR2-733 measured Conductivity range: 41.7 – 43.4 mS/cm at 25°C
HR2-733 measured Refractive Index range: 1.37577 – 1.37766 at 20°C

HR2-577 is the free base of HEPES sodium and is to be titrated to the desired pH using HCl
HR2-577 measured pH Range: 10.2 – 12.1 at 25°C
HR2-577 measured Conductivity range: 25.9 – 27.2 mS/cm at 25°C
HR2-577 measured Refractive Index range: 1.37097 – 1.37298 at 20°C

HR2-931-01 – 1.0 M HEPES sodium pH 6.8 is a Custom Shop reagent and is used to reproduce and optimize Crystallization Reagents for use with the Silver Bullets kit.

应用
用于配制筛选或优化的结晶级 HEPES 钠缓冲液
特征
无菌过滤
在 1+ 型超纯水中配制：25°C 时电阻率为 18.2 兆欧厘米，< 5 ppb 总有机碳，无细菌（<1 细菌（CFU/ml）），无热原（<0.03 内毒素（EU/ml）） , 无 RNase (< 0.01 ng/mL) 和无 DNase (< 4 pg/µL)
描述
HEPES钠

同义词：HEPES钠盐，或4-(2-羟乙基)哌嗪-1-乙磺酸钠盐，或N-(2-羟乙基)哌嗪-N’-(2-乙磺酸)钠盐
C8H17N2NaO4S
260.29 先生
中国科学院 [75277-39-3]
EC 编号 278-169-7
MDL 编号 MFCD00036463
PubChem 物质 ID 24895780
25°C 时 pKa 7.5
HEPES 钠的有效 pH 范围：6.6 – 8.2

使用 HCl 将 HR2-733 滴定至 pH 7.5
HR2-733 测得的电导率范围：41.7 – 43.4 mS/cm at 25°C
HR2-733 测得的折射率范围：1.37577 – 1.37766 at 20°C

HR2-577 是 HEPES 钠的游离碱，使用 HCl 滴定至所需的 pH 值
HR2-577 测得的 pH 值范围：10.2 – 12.1 at 25°C
HR2-577 测量电导率范围：25.9 – 27.2 mS/cm at 25°C
HR2-577 测得的折射率范围：1.37097 – 1.37298 at 20°C

HR2-931-01 – 1.0 M HEPES 钠 pH 6.8 是一种 Custom Shop 试剂，用于复制和优化与 Silver Bullets 试剂盒一起使用的结晶试剂。

 

1.0 M HEPES sodium

1.0 M HEPES sodium pH 7.5

 HR2-577 HEPES sodium SDS HR2-733 HEPES sodium pH 7.5 SDS Titration Table

1. Crystallization and preliminary X-ray characterization of GM2-activator protein. C. S. Wright and S.-C. Li. Acta Cryst. (1997). D53, 211-212.