MES | FabriChem

Synonyms

2-(N-Morpholino)ethanesulfonic acid; 4-Morpholineethanesulfonic acid;
2-morpholinoethanesulfonic acid; 2-(4-morpholino)ethanesulfonic acid;
MES; MES hydrate; morpholine-4-ethanesulfonic acid hydrate;

Technical Data

CAS Number: 4432-31-9
Molecular Formula: C₆H₁₃NO₄S
Molecular Weight: 195.24
Beilstein Registry Number: 141319
EC Number: 224-632-3

FabriChem Specifications

ITEMS	SPECIFICATION
CAS No.	4432-31-9
Molecular Formula	C₆H₁₃NO₄S
Molecular Weight	195.24
Assay (Titration)	99.0% Min.
Appearance	White Powder
Solubility (10% in H₂O)	Clear & Complete
Moisture	1.0% Max.
Pka (25°C)	5.9 – 6.3
pH (10% in H₂O)	2.8 – 4.0
IR	Conform to Known Standard
UV (10% in H₂O):
A 260 nm	0.1 Max.
A 280 nm	0.1 Max.

Molecular Structure

mes-structure-1

About

MES [2-(N-Morpholino)ethanesulfonic acid] is one of the known buffering agents used for biochemical and biological research. These buffering agents are now collectively referred to as “Good’s Buffers”. Good’s Buffers are important tools used in modern biological laboratories for a variety of their properties, including but not limited to being zwitterionic (aka hybrid or dipolar) compounds.