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2-morpholineethanesulfonic acid (MES)

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Product description

Chinese name: 2-morpholine ethanesulfonic acid
English name: 4-Morpholineethanesulfonic acid
CAS Number: 4432-31-9
Molecular formula: C6H13NO4S
Molecular weight: 195.24
EINECS number: 224-632-3
Melting point:>300°C(lit.)
Boiling point: 102°C Density 1.208 (estimate)
Refractive index: 1.5500 (estimate)
Storage conditions: StoreatRT.
Solubility: H2O: 0.5Mat20°C, clear
Acidity coefficient: (pKa)pKaat0.1Mionic: 0°, 6.38; 20°, 6.15; Chemicalbook 37°, 5.98; pKa11.99; pKa26.21; pKa/°C-0.011
Shape Powder
Color White
PH value 2.5-4.0 (25℃inneat)
Discoloration of acid-base indicator pH range: 5.5-6.7
Maximum wavelength (λmax)λ: 260nm Amax: 0.01λ: 280nm Amax: 0.01

Chemical properties: flash point 149℃, pour point 60℃. 1% water solubility at 25°C. It has high detergency, excellent dispersing power of lime soap and resistance to hard water. Good biological solubility.

Uses: MES is a zwitterionic buffer, effective in the pH range of 5.5-7.7. As a Good's buffer, MES is widely used in plant culture media, reagent solutions and physiological experiments to adjust pH. As a biological buffer, it is used in biochemical diagnostic kits, DNA/RNA extraction kits and PCR diagnostic kits. It can also be used as raw material for facial cleanser, shampoo foam bath agent, dishwashing detergent, hand sanitizer, etc.

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