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69897

Sigma-Aldrich

MES monohydrate

BioUltra, for luminescence, ≥99.5% (T)

Synonym(s):

2-(N-Morpholino)ethanesulfonic acid, 4-Morpholineethanesulfonic acid monohydrate

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About This Item

Linear Formula:
C6H13NO4S · H2O
CAS Number:
Molecular Weight:
213.25
Beilstein:
6350956
EC Number:
MDL number:
UNSPSC Code:
12352200
PubChem Substance ID:

grade

for luminescence

product line

BioUltra

Assay

≥99.5% (T)

impurities

insoluble matter, passes filter test

ign. residue (900 °C)

≤0.05%

pH

2.5-4.0 (25 °C, 0.5 M in H2O)

useful pH range

5.5-6.7

pKa (25 °C)

6.1

mp

>300 °C (lit.)

solubility

H2O: 0.5 M at 20 °C, clear, colorless

anion traces

chloride (Cl-): ≤50 mg/kg
sulfate (SO42-): ≤50 mg/kg

cation traces

Al: ≤5 mg/kg
As: ≤0.1 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
Ca: ≤20 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤50 mg/kg
Li: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
Na: ≤50 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Zn: ≤5 mg/kg

fluorescence

λex 200-600 nm; λem 300-800 nm

λ

0.5 M in H2O

UV absorption

λ: 260 nm Amax: 0.025
λ: 280 nm Amax: 0.020

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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