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MES (0.5 M, pH 6) Preparation and Recipe
MES buffer is a Good's buffer that is remarkably stable both chemically and enzymatically. It has minimal UV absorbance and is often used as a running buffer for bis-tris gels.
To prepare
L of MES (0.5 M, pH 6):
Change the value in the textbox above to scale the recipe volume
Table 1. Required components
ComponentAmountConcentration
MES free acid (mw: 195.24 g / mol)##
  • Prepare 800 mL of dH2O in a suitable container.
  • Add # of MES free acid to the solution
  • Starting pH for 0.5M MES solution is 3.23 For 1 L of 0.5 M MES, 13.6 ml of 10N NaOH is needed to adjust the pH to 6.0
  • Add dH2O until the volume is 1 L.


References
This online resource may be cited as follows
MLA
"Quest CalculateMES (0.5 M, pH 6) Preparation and Recipe." AAT Bioquest, Inc.7 Oct2025https://www.aatbio.com/resources/buffer-preparations-and-recipes/mes-ph-6.
APA
AAT Bioquest, Inc. (2025October 7). Quest CalculateMES (0.5 M, pH 6) Preparation and Recipe. AAT Bioquest. https://www.aatbio.com/resources/buffer-preparations-and-recipes/mes-ph-6.
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