Tris
Synonyms: Trizma base or 2-Amino-2-(hydroxymethyl)-1,3-propanediol or THAM or Tris base or Tris(hydroxymethyl)aminomethane or TrometamolC4H11NO3NH2C(CH2OH)3Mr 121.14CAS Number [77-86-1]EC Number 201-064-4Beilstein Registry Number 741883Merck 14,9772RTECS TY2900000MDL Number MFCD00004679PubChem Substance ID 24889854Purity 99.8 - 100.1%pKa = 8.1 at 25°C
Useful pH range of Tris: 7.0 – 9.0
Titrate HR2-589 to the desired pH using HClHR2-589 Measured pH Range: 10.9 - 11.1 at 25°CHR2-589 Measured Conductivity Range: 193.3 - 236.7 µS/cm at 25°CHR2-589 Measured Refractive Index: 1.34991 - 1.35058 at 20°C
HR2-725 is titrated to pH 8.5 using HClHR2-725 Measured Conductivity Range: 18.1 - 22.7 mS/cm at 25°CHR2-725 Measured Refractive Index: 1.35310 - 1.35369 at 20°C
Insoluble Matter 0.005% maxDNase None DetectedRNase None DetectedProtease None DetectedHeavy Metals 5 ppm maxAs ≤ 5 ppm maxCa ≤ 5 ppm maxCu ≤ 5 ppm maxFe ≤ 5 ppm maxPb ≤ 5 ppm maxMg ≤ 5 ppm max
Trizma is a registered trademark of Sigma-Aldrich Co.
