1.06126

2-Morpholinoethanesulfonic acid monohydrate

buffer substance MES

• Synonym(s): 2-Morpholinoethanesulfonic acid monohydrate, MES
• CAS Number: 145224-94-8
• Molecular Weight: 213.25
• MDL number: MFCD00149409
• UNSPSC Code: 12161703
• EC Index Number: 224-632-3
• NACRES: NA.21

Properties

• Quality Level: 100
• form: powder
• pH: 3.6 (20 °C, 10 g/L in H₂O)
• mp: >300 °C
• solubility: 80 g/L
• bulk density: 570 kg/m³
• storage temp.: 2-30°C
• InChI: 1S/C6H13NO4S/c8-12(9,10)6-3-7-1-4-11-5-2-7/h1-6H2,(H,8,9,10)
• InChI key: SXGZJKUKBWWHRA-UHFFFAOYSA-N

Description

General description

buffer substance MES

Application

2-Morpholinoethanesulfonic acid monohydrate buffer substance MES. CAS 145224-94-8, pH 3.6 (10 g/l, H₂O, 20 °C).

Analysis Note

Assay (alcalimetric, calculated on anhydrous substance)≥ 99 %Identity (IR-spectrum)passes testUV-Absorption (250 nm, 50 g/l, 1 cm, water)≤ 0.05Chloride (Cl)≤ 0.005 %Sulphate (SO₄)≤ 0.005 %Heavy metals (as Pb)≤ 0.0005 %Na (Sodium)≤ 0.005 %Water (according to Karl Fischer)7.0 - 9.0 %Biological buffer, pKa at 20 °C6.15

Safety Information

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3