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93363 Sigma-Aldrich

Trizma® hydrochloride

BioUltra, for molecular biology, ≥99.0% (AT)

Synonym: TRIS HCl, TRIS hydrochloride, Tris(hydroxymethyl)aminomethane hydrochloride, Tromethane hydrochloride

  • CAS Number 1185-53-1

  • Linear Formula NH2C(CH2OH)3 · HCl

  • Molecular Weight 157.60

  •  Beilstein/REAXYS Number 3675235

  •  EC Number 214-684-5

  •  MDL number MFCD00012590

  •  PubChem Substance ID 57653541

  •  NACRES NA.25

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Properties

Related Categories Alphabetical, BioUltra, BioUltra Buffers, Biochemicals and Reagents, Biological Buffers,
Quality Level   200
grade   for molecular biology
product line   BioUltra
assay   ≥99.0% (AT)
form   powder or crystals
impurities   DNases, none detected
  RNases, none detected
  insoluble matter, passes filter test
  phosphatases, none detected
  proteases, none detected
ign. residue   ≤0.2% (as SO4)
loss   ≤0.2% loss on drying, 110 °C
pH   2.5-4.0 (25 °C, 4 M in H2O)
useful pH range   7.0 - 9.0
pKa (25 °C)   8.1
mp   150-152 °C
solubility   H2O: 4 M at 20 °C, clear, colorless
anion traces   sulfate (SO42-): ≤50 mg/kg
cation traces   Al: ≤5 mg/kg
  As: ≤0.1 mg/kg
  Ba: ≤5 mg/kg
  Bi: ≤5 mg/kg
  Ca: ≤10 mg/kg
  Cd: ≤5 mg/kg
  Co: ≤5 mg/kg
  Cr: ≤5 mg/kg
  Cu: ≤5 mg/kg
  Fe: ≤5 mg/kg
  K: ≤50 mg/kg
  Li: ≤5 mg/kg
  Mg: ≤5 mg/kg
  Mn: ≤5 mg/kg
  Mo: ≤5 mg/kg
  Na: ≤50 mg/kg
  Ni: ≤5 mg/kg
  Pb: ≤5 mg/kg
  Sr: ≤5 mg/kg
  Zn: ≤5 mg/kg
λ   4 M in H2O
UV absorption   λ: 260 nm Amax: 0.12
  λ: 280 nm Amax: 0.08
SMILES string   Cl.NC(CO)(CO)CO
InChI   1S/C4H11NO3.ClH/c5-4(1-6,2-7)3-8;/h6-8H,1-3,5H2;1H
InChI key   QKNYBSVHEMOAJP-UHFFFAOYSA-N

Description

Application

The pH values of all buffers are temperature and concentration dependent. For Tris buffers, pH increases about 0.03 unit per °C decrease in temperature, and decreases 0.03-0.05 unit per ten-fold dilution.
For precise applications, use a carefully calibrated pH meter with a glass/calomel combination electrode.

Trizma is used in the formulation of buffer solutions in the pH range between 7.5 and 8.5. Tris buffer solutions are widely used in cell and molecular biology for processes such as protein and nucleic acid extraction and purification. Trizma based buffers are also in column chromatography and in gel electrophoresis. Trizma hydrochloride is used as a general reagent for the preparation of all types of Tris buffers.

Other Notes

Easily compare specifications for Trizma HCl products with the Trizma HCl specification table.

Component of extraction buffer e.g. phenol extraction of DNA or RNA; Buffer component of separating and stacking gels in the characterization of in vitro translation products by SDS-PAGE.

Legal Information

Trizma is a registered trademark of Sigma-Aldrich Co. LLC

Safety & Documentation

Safety Information

Personal Protective Equipment 
RIDADR 
NONH for all modes of transport
WGK Germany 
WGK 1
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable
Protocols & Articles

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