β-(N-Morpholino)ethanesufonic acid (MES) monohydrate 98, powder_white crystalline

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IC19530910EA 53.23 USD
IC19530910 IC19530925 IC19530980 IC19530983 IC19530991
β-(N-Morpholino)ethanesufonic acid (MES) monohydrate 98, powder_white crystalline
β-(N-Morpholino)ethanesulphonic acid (MES) monohydrate

MES is a zwitterionic buffer.


MES is regarded as one of the "Good" buffers developed for biological applications. It has the advantages of: midrange pKa, maximum water solubility and minimum solubility in all other solvents,minimal salt effects, minimal change in pK with temperature chemically and enzymatically stable, minimal absorption in visible or UV spectral range.


Soluble in water (0.5 M or higher yields a clear and colorless solution).


MES is a zwitterionic buffer. One of the "Good" buffers developed for biological applications. It has the advantages of:midrange pKa,maximum water solubility and minimum solubility in all other solvents,minimal salt effects , minimal change in pK with temperature chemically and enzymatically stable, minimal absorption in visible or UV spectral range.

Formula: C₆H₁₃NO₄S·1H₂O
MW: 213.25 g/mol
MDL Number: MFCD00149409
CAS Number: 145224-94-8
Merck Index: 13,05929
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Specification Test Results

Purity ≥98%
OD260 (5% aq soln) 0.3
Loss on Drying 10%
pH 2.5 - 4.0 (1% aq solution)
pka 6.1 at 25 °C


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