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M8902

Sigma-Aldrich

MES hemisodium salt

≥98% (titration)

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Synonym(s):
2-(N-Morpholino)ethanesulfonic acid hemisodium salt, 4-Morpholineethanesulfonic acid hemisodium salt
Empirical Formula (Hill Notation):
C6H13NO4S·0.5Na
CAS Number:
Molecular Weight:
206.73
MDL number:
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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This Item
M0164M9027M3885
MES hemisodium salt ≥98% (titration)

Sigma-Aldrich

M8902

MES hemisodium salt

MES hemisodium salt dry powder

Sigma-Aldrich

M0164

MES hemisodium salt

MOPS hemisodium salt ≥99% (titration)

Sigma-Aldrich

M9027

MOPS hemisodium salt

MES sodium salt ≥99% (titration)

Sigma-Aldrich

M3885

MES sodium salt

form

crystalline powder

form

dry powder

form

powder or crystals

form

crystalline powder

impurities

≤8% water content (Karl Fischer)

impurities

-

impurities

-

impurities

≤8% water content (Karl Fischer)

solubility

water: 500 mg/mL, clear, colorless

solubility

-

solubility

water: 500 mg/mL, clear, colorless to almost colorless

solubility

water: 0.5 g/mL, clear, colorless

cation traces

Pb: ≤5 ppm

cation traces

-

cation traces

-

cation traces

-

useful pH range

5.5-6.7

useful pH range

5.5-6.7

useful pH range

6.5-7.9

useful pH range

5.5-6.7

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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25G
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705578-5MG-PW

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MMYOMAG-74K-13

1000309185

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  • For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').

  • For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').

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