Merck
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93352

Sigma-Aldrich

Trizma® base

≥99.0% (T)

Synonym(s):
Tris base, Trometamol, 2-Amino-2-(hydroxymethyl)-1,3-propanediol, THAM, Tris(hydroxymethyl)aminomethane
Linear Formula:
NH2C(CH2OH)3
CAS Number:
Molecular Weight:
121.14
Beilstein:
741883
Número de EC:
Número MDL:
ID de la sustancia en PubChem:
NACRES:
NA.25

Nivel de calidad

200

descripción

aminopeptidase substrate

línea de producto

BioChemika

ensayo

≥99.0% (T)

formulario

crystalline

pérdida

≤1% loss on drying, 110 °C

pH

10.5-12.0(4 m in water, 25 °C)

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

solubilidad

H2O: 1 M at 20 °C, clear, colorless

trazas de anión

chloride (Cl-): ≤50 mg/kg
sulfate (SO42-): ≤50 mg/kg

trazas de catión

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
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Na: ≤50 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg

SMILES string

NC(CO)(CO)CO

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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Descripción general

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.

Aplicación

Trizma® base was used as buffer for the following studies:
  • Electrophoretic transfer for the specific identification of isozymes of starch debranching enzyme, α-amylase and 9-amylase.
  • Electrophoretic separation of lipoproteins in polyacrylamide gels.
  • Preparation of TRIS buffer having pH 8.
It may be used to compose DN buffer for DNA nick-end labeling of tissue sections.

Otras notas

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.

Información legal

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

Código de clase de almacenamiento

11 - Combustible Solids

WGK

WGK 1

Punto de inflamabilidad F

Not applicable

Punto de inflamabilidad C

Not applicable

Equipo de protección personal

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

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Certificate of Origin

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