2-morpholineethanesulfonic acid (MES)

basic information
I want to inquire
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.

The next article
N,N-bis(2-hydroxyethyl)-2-aminoethanesulfonic acid (BES)