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StockOptions MES Individual Reagents
StockOptions MES Individual Reagents


Features
1.0 M concentrated stocks
0.1 unit increments for fine tuning pH
Available in pH 5.2 to 7.1
Description
HR2-943-**
** = Refers to the reagent number in the StockOptions MES Buffer kit.
For example, reagent number 1 = HR2-943-01. The StockOptions MES Buffer kit is HR2-243.

MES monohydrate
Synonyms: MES, 2-(N-morpholino)ethanesulfonic acid or 4-morpholineethanesulfonic acid monohydrate
C6H13NO4S-H2O
Mr 213.25
CAS Number [145224-94-8]
EC Number 224-632-3
Beilstein Registry Number 6350956
RTECS QE3479500
MDL Number MFCD00149409
PubChem Substance ID 24885996
Purity >99.0%
pKa 6.1 at 25°C

Solutions are stable at 2-8 °C for months. Autoclaving is not recommended for any sulfonic acid buffer. When MES solutions are autoclaved, they turn yellow (although pH does not change measurably). The identity of the yellow breakdown product is unknown. When MES solutions are stored at room temperature, they can turn yellow within six months.

Useful pH range of MES 5.2 - 7.1

MES buffers formulated in Type 1+ ultrapure water, 18.2 megohm resistivity at 25°C, < 5 ppb Total Organic Carbon, <1 Bacteria (CFU/ml), <0.03 Endotoxin (EU/ml). The pH is adjusted using Sodium hydroxide (NaOH). Buffers are sterile filtered using 0.22 micron filters under sterile conditions

Ca < 0.005%
Cd < 0.0005%
Cl < 0.005%
Co < 0.0005%
Cr < 0.0005%
Cu < 0.0005%
Fe < 0.0005%
K < 0.005%
Mg < 0.0005%
Mn < 0.0005%
Na < 0.005%
Ni < 0.0005%
Pb < 0.0005%
SO4 < 0.005%
Zn < 0.0005%
CAT NO NAME DESCRIPTION
HR2-943-01 StockOptions MES 01 185ml 1.0 M MES monohydrate pH 5.2
Price Quantity
$168.00
CAT NO NAME DESCRIPTION
HR2-943-02 StockOptions MES 02 185ml 1.0 M MES monohydrate pH 5.3
Price Quantity
$168.00
CAT NO NAME DESCRIPTION
HR2-943-03 StockOptions MES 03 185ml 1.0 M MES monohydrate pH 5.4
Price Quantity
$168.00
CAT NO NAME DESCRIPTION
HR2-943-04 StockOptions MES 04 185ml 1.0 M MES monohydrate pH 5.5
Price Quantity
$168.00
CAT NO NAME DESCRIPTION
HR2-943-05 StockOptions MES 05 185ml 1.0 M MES monohydrate pH 5.6
Price Quantity
$168.00
CAT NO NAME DESCRIPTION
HR2-943-06 StockOptions MES 06 185ml 1.0 M MES monohydrate pH 5.7
Price Quantity
$168.00
CAT NO NAME DESCRIPTION
HR2-943-07 StockOptions MES 07 185ml 1.0 M MES monohydrate pH 5.8
Price Quantity
$168.00
CAT NO NAME DESCRIPTION
HR2-943-08 StockOptions MES 08 185ml 1.0 M MES monohydrate pH 5.9
Price Quantity
$168.00
CAT NO NAME DESCRIPTION
HR2-943-09 StockOptions MES 09 185ml 1.0 M MES monohydrate pH 6.0
Price Quantity
$168.00
CAT NO NAME DESCRIPTION
HR2-943-10 StockOptions MES 10 185ml 1.0 M MES monohydrate pH 6.1
Price Quantity
$168.00
CAT NO NAME DESCRIPTION
HR2-943-11 StockOptions MES 11 185ml 1.0 M MES monohydrate pH 6.2
Price Quantity
$168.00
CAT NO NAME DESCRIPTION
HR2-943-12 StockOptions MES 12 185ml 1.0 M MES monohydrate pH 6.3
Price Quantity
$168.00
CAT NO NAME DESCRIPTION
HR2-943-13 StockOptions MES 13 185ml 1.0 M MES monohydrate pH 6.4
Price Quantity
$168.00
CAT NO NAME DESCRIPTION
HR2-943-14 StockOptions MES 14 185ml 1.0 M MES monohydrate pH 6.5
Price Quantity
$168.00
CAT NO NAME DESCRIPTION
HR2-943-15 StockOptions MES 15 185ml 1.0 M MES monohydrate pH 6.6
Price Quantity
$168.00
CAT NO NAME DESCRIPTION
HR2-943-16 StockOptions MES 16 185ml 1.0 M MES monohydrate pH 6.7
Price Quantity
$168.00
CAT NO NAME DESCRIPTION
HR2-943-17 StockOptions MES 17 185ml 1.0 M MES monohydrate pH 6.8
Price Quantity
$168.00
CAT NO NAME DESCRIPTION
HR2-943-18 StockOptions MES 18 185ml 1.0 M MES monohydrate pH 6.9
Price Quantity
$168.00
CAT NO NAME DESCRIPTION
HR2-943-19 StockOptions MES 19 185ml 1.0 M MES monohydrate pH 7.0
Price Quantity
$168.00
CAT NO NAME DESCRIPTION
HR2-943-20 StockOptions MES 20 185ml 1.0 M MES monohydrate pH 7.1
Price Quantity
$168.00
References
1.Microscale Fluorescent Thermal Stability Assay for Membrane Proteins Structure, Volume 16, Issue 3, 11 March 2008, Pages 351-359 Alexander I. Alexandrov, Mauro Mileni, Ellen Y.T. Chien, Michael A. Hanson, Raymond C. Stevens
2.Characterization, crystallization and preliminary crystallographic analysis of human recombinant cyclooxygenase-2. Marco, SD; Priestle, JP; Grutter, MG; Wennogle, LP; Boyar, W. Acta Crystallogr D 53, 224- 226, 1997.
3.Increasing the size of microcrystals by fine sampling of pH limits. A. McPherson. J. Appl. Cryst. (1995). 28, 362-365.
SUPPORT MATERIALS
SDS for HR2-943-**
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