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Sigma-Aldrich

Trizma® base

≥99.8% (T), crystalline, for molecular biology, BioUltra

Synonym(s):

2-Amino-2-(hydroxymethyl)-1,3-propanediol, THAM, Tris base, Tris(hydroxymethyl)aminomethane, Trometamol

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About This Item

Linear Formula:
NH2C(CH2OH)3
CAS Number:
77-86-1
Molecular Weight:
121.14
Beilstein/REAXYS Number:
741883
EC Number:
201-064-4
MDL number:
MFCD00004679
UNSPSC Code:
12352104
PubChem Substance ID:
57653540
NACRES:
NA.25

product name

Trizma® base, BioUltra, for molecular biology, ≥99.8% (T)

grade

for molecular biology

Quality Level

200

description

aminopeptidase substrate

product line

BioUltra

assay

≥99.8% (T)

form

crystalline

impurities

DNases, none detected
 RNases, none detected
 insoluble matter, passes filter test
 phosphatases, none detected
 proteases, none detected

ign. residue

≤0.01% (as SO4)

loss

≤0.5% loss on drying, 110 °C

color

colorless to white

pH

10.5-12.0 (25 °C, 4 M in H2O)

useful pH range

7-9

pKa (25 °C)

8.1

bp

219-220 °C/10 mmHg (lit.)

mp

167-172 °C (lit.)
168-172 °C

solubility

H2O: 4 M at 20 °C, clear, colorless

anion traces

chloride (Cl-): ≤20 mg/kg
sulfate (SO42-): ≤5 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

SMILES string

NC(CO)(CO)CO

λ

4 M in H2O

UV absorption

λ: 260 nm Amax: 0.10
λ: 280 nm Amax: 0.08

suitability

in accordance for luminescence

InChI

1S/C4H11NO3/c5-4(1-6,2-7)3-8/h6-8H,1-3,5H2

InChI key

LENZDBCJOHFCAS-UHFFFAOYSA-N

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General description

Tris is an established basimetric standard and buffer used in biochemistry and molecular biology. It may be used by itself as a buffer or as a component of mixed buffer formulations, such as Tris-EDTA (TE) buffer, Tris-acetate-EDTA (TAE) buffer, Tris-borate-EDTA (TBE) buffer, etc. It is pure, essentially stable, relatively non-hygroscopic and has a high equivalent weight.

The BioChemika quality is for the usual biochemical applications. The products designated as BioChemika Ultra grade are suitable for different applications like purification, precipitation, crystallization and other applications which require tight control of elemental content. Trace elemental analyses have been performed for all qualities. The molecular biology qualities are also tested for absence of nucleases and the luminescence quality spectroscopic tests are performed.

Application

Trizma has been used:
  • In the dissection medium and culture medium of Hippocampal organotypic tissue cultures
  • As a component of lysis buffer before immunoprecipitation and immunoblotting
  • As a component of harvest buffer, lysis buffer, ChIP dilution buffer, and wash buffer in chromatin immunoprecipitation method for studying protein-DNA binding
  • As a component of mixed buffer formulations
  • As a component of NuPAGE loading buffer for SDS-PAGE and as a component of transfer buffer for Western blotting
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 base is used as a general reagent for the preparation of all types of Tris buffers.

Other Notes

Easily compare specifications for Trizma products with the Trizma specification table.
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.
Running buffer component in non-denaturing agarose gel electrophoresis; In non-denaturing and urea-denaturing polyacrylamide gel electrophoresis; DNA digest analysis with capillary electrophoresis.

Legal Information

Trizma is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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