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163732

Sigma-Aldrich

MES monohydrate

Synonym(s):
2-(N-Morpholino)ethanesulfonic acid, 4-Morpholineethanesulfonic acid monohydrate
Empirical Formula (Hill Notation):
C6H13NO4S · H2O
CAS Number:
Molecular Weight:
213.25
Beilstein:
6350956
MDL number:
PubChem Substance ID:

assay

98.5-102.5% NaOH basis (titration)

form

powder

useful pH range

5.5 - 6.7

pKa (25 °C)

6.1

mp

>300 °C (lit.)

solubility

water: 0.25 g/mL, clear, colorless

SMILES string

O.OS(=O)(=O)CCN1CCOCC1

InChI

1S/C6H13NO4S.H2O/c8-12(9,10)6-3-7-1-4-11-5-2-7;/h1-6H2,(H,8,9,10);1H2

InChI key

MIIIXQJBDGSIKL-UHFFFAOYSA-N

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General description

MES monohydrate (2-morpholinoethanesulfonic acid monohydrate) is is a zwitterionic organic compound used as an acidic buffer in specific biological processes.

Application

A buffer useful in the physiological pH range.

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