商品名：一水吗啉乙磺酸

别 名：2-(N-吗啉)乙磺酸,吗啉乙磺酸,2-(4-吗啉)乙磺酸,MES 一水合物
2-(N-Morpholino)ethanesulfonic acid
4-Morpholineethanesulfonic acid monohydrate
MES monohydrate

英文名：MES monohydrate

产 地：湖南

Cas号：145224-94-8

MDL：MFCD00149409

Beilstein：6350956

EINECS：224-632-3

分子结构：

分子式：C6H13NO4S•H2O

分子量：213.2500

备注：

性状：白色结晶粉末
pH range 5.5 - 6.7
pKa  6.1
mp >300 °C

质量标准：外观Appearance                        white powder or crystals
纯度Purity by Titration with NAOH     ≥ 99.0 %
灼烧残渣ign. residue (900 °C)        ≤0.05% (as SO4)
useful pH range                       5.5 - 6.7
pKa (25 °C)                          6.1
水溶性solubility H2O:                 soluble0.5 M at 20 °C, clear, colorless
pH                                    2.5-4.0 (25 °C, 0.5 M in H2O)
水分water                             8.45 % (theory, monohydrate)
红外光谱infrared spectrum             conforms to structure
痕量金属分析metal trace analysis (icp) corresponds to requirements
λ                                0.5 M in H2O
UV absorption λ: 260 nm A:           ≤0.025
  λ: 280 nm A:                       ≤0.020
calcium (icp)                        ≤ 50 ppm
cadmium (icp)                        ≤ 5.0 ppm
cobalt (icp)                         ≤ 5.0 ppm
chromium (icp)                       ≤ 5.0 ppm
copper (icp)                         ≤ 5.0 ppm
iron (icp)                           ≤ 5.0 ppm
potassium (icp)                      ≤ 50 ppm
magnesium (icp)                      ≤ 5.0 ppm
manganese (icp)                      ≤ 5.0 ppm
sodium (icp)                         ≤ 50 ppm
nickel (icp)                         ≤ 5.0 ppm
lead (icp)                           ≤ 5.0 ppm
zinc (icp)                           ≤ 5.0 ppm
chloride (cl)                        ≤ 50 ppm
sulfate (so4)                        ≤ 50 ppm

存储：室温

用途：生物缓冲液

联合编号：

RISK：

Safety：

Hazard：