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产品编号 B9754
CAS号 6976-37-0
BIS-TRIS
别名: 2-二(2-羟乙基)氨基-2-羟甲基-1,3-丙二醇 2-双(羟基甲基)-2,2′,2″-次氮基三乙醇 双(2-羟乙基)氨基-三(羟甲基)甲烷
经验分子式（希尔表示法） C8H19NO5
分子量 209.24
Quality Level ELITE
assay ≥98.0% (titration)
useful pH range 5.8 - 7.2
pKa (25 °C) 6.5
Market Segment Diagnostic Assay Manufacturing
Appearance (Color) White
Appearance (Form) Crystalline Powder
Solubility (Color) Colorless to Very Faint Yellow
Solubility (Turbidity) Clear
500 mg/ml, H2O
Water (by Karl Fischer) < 1.0 % _
Heavy Metals <= 5 ppm
Pb
Infrared spectrum Conforms to Structure
pH 9.0 - 10.1
1M in water at 20-25 deg C
Titration with H2SO4 > 98.0 % _
(anhydrous)
Recommended Retest Period -------------------------
4 years |