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1.10695

N-[Tris(hydroxymethyl)-methyl]-2-aminoethanesulfonic acid

Buffer substance TES

Synonym(s):

N-[Tris(hydroxymethyl)-methyl]-2-aminoethanesulfonic acid, TES

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About This Item

CAS Number:
7365-44-8
Molecular Weight:
229.24
UNSPSC Code:
12161703
EC Index Number:
230-906-3
NACRES:
NA.05
MDL number:
MFCD00007532
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Quality Segment

100

form

solid

mp

226-228 °C

storage temp.

2-30°C

SMILES string

[S](=O)(=O)([O-])CC[N+H2]C(CO)(CO)CO

InChI

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

InChI key

JOCBASBOOFNAJA-UHFFFAOYSA-N

General description

Buffer substance TES

Application

N-[Tris(hydroxymethyl)-methyl]-2-aminoethanesulfonic acid Buffer substance TES. CAS 7365-44-8, molar mass 229.24 g/mol.

Analysis Note

Assay (alkalimetric)≥ 99 %Identity (IR-spectrum)passes testUV-Absorption (250 nm, 50 g/l, 1 cm, water)≤ 0.05Sulphate (SO₄)≤ 0.005 %Heavy metals (as Pb)≤ 0.0005 %Na (Sodium)≤ 0.1 %Loss on Drying (105°C)≤ 0.2 %Biological buffer, pKa at 20 °C7.50

Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

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