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93363

Sigma-Aldrich

Trizma® hydrochloride

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

Synonym(s):

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

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About This Item

Linear Formula:
NH2C(CH2OH)3 · HCl
CAS Number:
1185-53-1
Molecular Weight:
157.60
Beilstein:
3675235
EC Number:
214-684-5
MDL number:
MFCD00012590
UNSPSC Code:
12161700
PubChem Substance ID:
57653541
NACRES:
NA.25

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

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Application

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.
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.
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 Merck KGaA, Darmstadt, Germany

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

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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Santiago Vilanova et al.
Plant methods, 16, 110-110 (2020-08-15)
The use of sequencing and genotyping platforms has undergone dramatic improvements, enabling the generation of a wealth of genomic information. Despite this progress, the availability of high-quality genomic DNA (gDNA) in sufficient concentrations is often a main limitation, especially for
D Sirieix et al.
American journal of respiratory and critical care medicine, 155(3), 957-963 (1997-03-01)
Metabolic acidosis induces a decrease in the developed force of cardiac muscle by affecting every step of the excitation--contraction coupling pathway. Due to transient worsening in intracellular acidosis, the value of administering sodium bicarbonate therapeutically during acute acidosis has been
Characterization of in vitro translation products.
R Jagus
Methods in enzymology, 152, 296-304 (1987-01-01)
G G Nahas et al.
Drugs, 55(2), 191-224 (1998-03-20)
THAM (trometamol; tris-hydroxymethyl aminomethane) is a biologically inert amino alcohol of low toxicity, which buffers carbon dioxide and acids in vitro and in vivo. At 37 degrees C, the pK (the pH at which the weak conjugate acid or base
Large- and small-scale phenol extractions.
D M Wallace
Methods in enzymology, 152, 33-41 (1987-01-01)
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