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Biological Buffers
MES Sodium Salt
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 Printer friendly PDF version (266 Kb) |
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| Sigma-Aldrich® MES Sodium Salt Physical Properties |
| Synonyms |
2-(N-Morpholino)ethanesulfonic acid sodium salt
4-Morpholineethanesulfonic acid sodium salt |
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| Molecular Formula |
C6H12NNaO4S |
Beilstein Registry |
3765682 |
Useful pH range |
5.5 - 6.7 |
| Molecular Weight |
217.22 |
MDL Number |
MFCD00065473 |
pKa (at 25) |
6.1 |
| CAS Number |
71119-23-8 |
EG/EC Number |
275-203-2 |
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| Sigma-Aldrich MES Sodium Salt Specifications Comparison |
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M3885 |
M5057 |
M3058 |
| Grade |
≥99% (titration) |
BioReagent, ≥99% (titration) |
BioReagent, for cell culture, for molecular biology |
| Purity |
≥99% |
≥99% |
≥99% |
| Reagent Testing |
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M3885 |
M5057 |
M3058 |
Enhanced Quality
Profile Buffers |
X |
X |
X |
| 260NM |
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<0.05 |
<0.05 |
| 280NM |
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<0.03 |
<0.03 |
| 290NM |
≤0.1 |
≤0.1 |
≤0.1 |
| IR |
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X |
X |
| pH |
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8.9 - 10.1 |
8.9 - 10.1 |
| Karl Fischer |
≤8% |
≤8% |
≤8% |
| Life Science Testing |
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M3885 |
M5057 |
M3058 |
| Synthetic |
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X |
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| Endotoxin |
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≤0.1 eu/mg |
| SPC |
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≤100 cfu/g |
| Cell test |
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X |
| RNAse |
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X |
| DNAse |
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X |
| Nickase |
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X |
| Protease |
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X |
| Lead(Pb) |
≤0.0005% |
≤0.0005% |
≤0.0005% |
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