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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:
117961-21-4
Molecular Weight:
206.73
MDL number:
MFCD00079460
UNSPSC Code:
12161700
eCl@ss:
32129211
PubChem Substance ID:
24897296
NACRES:
NA.25

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

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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Frontiers in plant science, 7, 79-79 (2016-03-01)
In plants, growth of roots and root hairs is regulated by the fine cellular control of pH and reactive oxygen species (ROS). MES, 2-(N-morpholino)ethanesulfonic acid as one of the Good's buffers has broadly been used for buffering medium, and it
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