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Biological Buffers

MES Sodium Salt

 MES Sodium Salt Specification Comparison PDF Printer friendly PDF version (266 Kb) FAQs and Live Chat Banner Image

Sigma-Aldrich® MES Sodium Salt Physical Properties
Synonyms     2-(N-Morpholino)ethanesulfonic acid sodium salt
    4-Morpholineethanesulfonic acid sodium salt
MES Sodium Salt Image
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  
Sigma-Aldrich MES Sodium Salt Specifications Comparison
  M3885 M5057 M3058
Grade ≥99% (titration) BioReagent, ≥99% (titration) BioReagent, for cell culture, for molecular biology
Purity ≥99% ≥99% ≥99%
Reagent Testing
  M3885 M5057 M3058
Enhanced Quality
Profile Buffers
260NM   <0.05 <0.05
280NM   <0.03 <0.03
290NM ≤0.1 ≤0.1 ≤0.1
IR   X X
pH   8.9 - 10.1 8.9 - 10.1
Karl Fischer ≤8% ≤8% ≤8%
Life Science Testing
  M3885 M5057 M3058
Synthetic   X  
Endotoxin     ≤0.1 eu/mg
SPC     ≤100 cfu/g
Cell test     X
RNAse     X
DNAse     X
Nickase     X
Protease     X
Lead(Pb) ≤0.0005% ≤0.0005% ≤0.0005%
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