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Key Documents

M8902

Sigma-Aldrich

MES hemisodium salt

≥98% (titration)

Synonym(s):

2-(N-Morpholino)ethanesulfonic acid hemisodium salt, 4-Morpholineethanesulfonic acid hemisodium salt

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About This Item

Empirical Formula (Hill Notation):
C6H13NO4S·0.5Na
CAS Number:
Molecular Weight:
206.73
MDL number:
UNSPSC Code:
12161700
eCl@ss:
32129211
PubChem Substance ID:
NACRES:
NA.25

Quality Level

Assay

≥98% (titration)

form

crystalline powder

impurities

≤8% water content (Karl Fischer)

useful pH range

5.5-6.7

pKa 

6.1

solubility

water: 500 mg/mL, clear, colorless

cation traces

Pb: ≤5 ppm

SMILES string

[Na+].OS(=O)(=O)CCN1CCOCC1.[O-]S(=O)(=O)CCN2CCOCC2

InChI

1S/2C6H13NO4S.Na/c2*8-12(9,10)6-3-7-1-4-11-5-2-7;/h2*1-6H2,(H,8,9,10);/q;;+1/p-1

InChI key

KHQSUKMBWPKXOP-UHFFFAOYSA-M

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Application

MES hemisodium salt has been used as a buffer for the resuspension of carboxylated micelles. It has also been used as a buffer for the immobilization of antibacterial nisin peptides.

Biochem/physiol Actions

MES is one of the major Good′s buffers and is applicable in regulating the pH value in physiological experiments, reagent solutions and plant culture medium.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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