1.06126
2-Morpholinoethanesulfonic acid monohydrate
buffer substance MES
Synonym(s):
2-Morpholinoethanesulfonic acid monohydrate, MES
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About This Item
CAS Number:
Molecular Weight:
213.25
MDL number:
UNSPSC Code:
12161703
EC Index Number:
224-632-3
NACRES:
NA.21
Quality Level
form
powder
pH
3.6 (20 °C, 10 g/L in H2O)
mp
>300 °C
solubility
80 g/L
bulk density
570 kg/m3
storage temp.
2-30°C
InChI
1S/C6H13NO4S/c8-12(9,10)6-3-7-1-4-11-5-2-7/h1-6H2,(H,8,9,10)
InChI key
SXGZJKUKBWWHRA-UHFFFAOYSA-N
General description
buffer substance MES
Application
2-Morpholinoethanesulfonic acid monohydrate buffer substance MES. CAS 145224-94-8, pH 3.6 (10 g/l, H₂O, 20 °C).
Analysis Note
Assay (alcalimetric, calculated on anhydrous substance)≥ 99 %Identity (IR-spectrum)passes testUV-Absorption (250 nm, 50 g/l, 1 cm, water)≤ 0.05Chloride (Cl)≤ 0.005 %Sulphate (SO₄)≤ 0.005 %Heavy metals (as Pb)≤ 0.0005 %Na (Sodium)≤ 0.005 %Water (according to Karl Fischer)7.0 - 9.0 %Biological buffer, pKa at 20 °C6.15
Storage Class Code
11 - Combustible Solids
WGK
WGK 3
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