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T0772

Sigma-Aldrich

TES sodium salt

≥99% (titration)

Synonym(s):

Sodium 2-((1,3-dihydroxy-2-(hydroxymethyl)-propan-2-yl)amino)ethane sulfonate, TES NA, N-[Tris(hydroxymethyl)methyl]-2-aminoethanesulfonic acid sodium salt

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About This Item

Empirical Formula (Hill Notation):
C6H14NNaO6S
CAS Number:
70331-82-7
Molecular Weight:
251.23
MDL number:
MFCD00065482
UNSPSC Code:
12161700
PubChem Substance ID:
24899912
NACRES:
NA.25

Quality Level

200

assay

≥99% (titration)

form

crystalline powder

impurities

≤7% water content (Karl Fischer)

useful pH range

6.8-8.2

pKa (25 °C)

7.5

solubility

water: 0.333 g/mL, clear to slightly hazy, colorless

cation traces

Pb: ≤5 ppm

application(s)

diagnostic assay manufacturing

SMILES string

[Na+].OCC(CO)(CO)NCCS([O-])(=O)=O

InChI

1S/C6H15NO6S.Na/c8-3-6(4-9,5-10)7-1-2-14(11,12)13;/h7-10H,1-5H2,(H,11,12,13);/q;+1/p-1

InChI key

GUXMFAHOYNRHBI-UHFFFAOYSA-M

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General description

TES sodium salt belongs to the category of zwitterionic buffers that contain ionizable groups of both positive and negative charges. It has a high water solubility and can effectively stabilize pH levels within the physiological pH range of 6.8 to 8.2 over a broad range of temperatures. TES sodium salt is used in the preparation of electrophoresis buffers. It is one of the commonly used Good buffers in biochemistry and molecular biology research.

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

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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