Synonyms: 2,2-Bis(hydroxymethyl)-2,2′,2""-nitrilotriethanol, or 2-Bis(2-hydroxyethyl)amino-2-(hydroxymethyl)-1,3-propanediol, or Bis(2-hydroxyethyl)amino-tris(hydroxymethyl)methane.C₈H₁₉NO₅M_r 209.24CAS Number [6976-37-0]EC Number 230-237-7Beilstein Registry Number 2205275MDL Number MFCD00002853Purity ≥ 98.0%pKa = 6.4 at 20°CpKa = 6.5 at 25°C

HR2-781 is titrated to pH 5.5 using HClMeasured Conductivity Range of HR2-781: 38.4 - 43.1 mS/cm at 25°CMeasured Refractive Index of HR2-781: 1.37069 - 1.37150 at 20°C

HR2-783 is titrated to pH 6.5 using HClMeasured Conductivity Range of HR2-783: 22.8 - 28.7 mS/cm at 25°CMeasured Refractive Index of HR2-783: 1.36817 - 1.36926 at 20°C

Al ≤0.0005%Ca ≤0.0005%Cl ≤0.05%Cu ≤0.0005%Fe ≤0.0005%K ≤0.005%Mg ≤0.0005%NH₄ ≤0.05%Na ≤0.005%Pb ≤0.001%SO₄ ≤0.05%Zn ≤0.0005%