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857645

Sigma-Aldrich

Trizma® hydrochloride

≥99%

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:
329769409

Assay

≥99%

form

crystals

useful pH range

7.0 - 9.0

pKa (25 °C)

8.1

solubility

water: 0.667 g/mL, clear, colorless

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

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.

Legal Information

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

Storage Class Code

13 - Non 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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