69890
MES hydrate
BioUltra, ≥99.5% (T)
Synonym(s):
2-(N-Morpholino)ethanesulfonic acid hydrate, 4-Morpholineethanesulfonic acid
About This Item
Recommended Products
product line
BioUltra
Quality Level
Assay
≥99.5% (T)
form
powder or crystals
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
6.1
solubility
H2O: 0.5 M at 20 °C, clear, colorless
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General description
Preparation Note
Other Notes
Sterilization: Sterilization should be by filteration through 0.2μM filters. Autoclaving is not recommended by any sulfonic acid buffers. If buffers must be nuclease-free, it is best to treat the water, then add the buffer solids after autoclaving. When MES solutions are autoclaved, they turn yellow (although pH does not change measurably. The identity of the yellow breakdown product is unknown.
Storage Class Code
13 - Non Combustible Solids
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
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