Biological Buffers

MES

CAS No.
4432-31-9
Catalogue ID
GTC-433

MES, CAS 4432-31-9. Source-derived identification, physical data and applications are provided for catalogue reference; request the current specification, COA and SDS for the required grade.

Catalogue aliases / related identifiers

2-(N-morpholino)ethanesulfonic acid; 4-Morpholineethanesulfonic acid; 2-Morpholinoethanesulfonic acid; 2-(4-morpholino)ethanesulfonic acid; MES buffer; 2-[N-Morpholino]ethanesulfonic acid; morpholine-4-ethanesulfonic acid

Supplied catalogue source: GTC-433 · Page 127

Reference data — confirm before ordering or use

The information below is a structured migration from the supplied catalogue snapshot. It is not a current product specification, COA or SDS. Confirm the actual supplier, grade, batch documents, classification, packing and destination requirements for your enquiry.


Basic Information

CAS No.4432-31-9
EC No.224-632-3
Linear FormulaC6H13NO4S
Molecular Weight195.24 g/mol
AppearanceWhite crystalline powder
Melting Point>300 °C (lit.)
Boiling pointNot available (typical reference)
Density1.4 g/cm³ (lit.)
SolubilityFreely soluble in water
Storage ConditionsKeep in a tightly closed container in a cool, dry and well-ventilated place.
Chemical StructureMolecular Structure of MES

Key Applications

  • Biological buffer: MES is used to maintain stable pH conditions in biological systems and biochemical experiments requiring precise control around neutral pH.

  • Cell culture reagent: Applied in cell culture media formulations to support consistent pH for optimal cell growth and viability.

  • Biochemical assay reagent: Employed in various biochemical assays and enzyme studies where buffering capacity is critical for accurate results.

  • Laboratory buffer reagent: Suitable for protein analysis, electrophoresis and other standard laboratory protocols in molecular biology.

  • Buffer formulation: Ideal component for preparing custom biological buffer systems in research and diagnostic applications.


  • Consistent product quality: High-purity MES with reliable batch consistency suitable for demanding biochemical reagent applications.

  • Stable global supply: Flexible options for sample, trial and bulk quantities supported by dependable international logistics.

  • SDS and COA support: Full product documentation including SDS and COA provided upon request for quality assurance and compliance.

  • Responsive sourcing support: Professional communication and flexible packaging choices tailored to your specific requirements.

Before you order

Confirm the current commercial product record.

Include the required grade or purity, quantity, preferred packing, destination country/port and required document set.

  • 01Current specification
  • 02Batch or sample COA
  • 03Product- and supplier-specific SDS
  • 04Packing and shipping review
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