4-Morpholineethanesulfonic Acid

• CAT Number: R018695
• CAS Number: 4432-31-9
• Molecular Formula: C6H13NO4S
• Molecular Weight: 195.23
• Purity: ≥95%
• Synonyms: 2-(4-Morpholino)ethanesulfonic Acid; 2-(4-Morpholinyl)ethanesulfonic Acid; 2-(N-Morpholino)ethanesulfonic Acid; 2-Morpholinoethanesulfonic Acid; MES; MES (buffering agent); Morpholinoethanesulfonic Acid; NSC 157116
• Storage: Store at +4°C
• IUPAC Name: 2-morpholin-4-ylethanesulfonic acid
• InChI: InChI=1S/C6H13NO4S/c8-12(9,10)6-3-7-1-4-11-5-2-7/h1-6H2,(H,8,9,10)
• InChIKey: SXGZJKUKBWWHRA-UHFFFAOYSA-N
• SMILES: C1COCCN1CCS(=O)(=O)O

4-Morpholineethanesulfonic acid (Cat No.: R018695) is a zwitterionic organic compound commonly used as a biological buffer in biochemistry and molecular biology. It has a morpholine ring linked to an ethanesulfonic acid group, giving it excellent water solubility and buffering capacity in the pH range of 5.5 to 6.7. MES is known for its minimal interference with biochemical reactions, low UV absorbance, and chemical stability. It is ideal for use in protein purification, electrophoresis, and cell culture applications where precise pH control is essential.