MOPSO Buffer


Cell culture media | Electrophoresis
Packaging Options
  • 25 kg drum
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Assay (titr.): ≥ 99% | CAS No: 68399-77-9 | Useful pH range: 6.2 – 7.6

Hopax is a manufacturer and supplier of MOPSO (CAS 68399-77-9), a zwitterionic biological buffer often used as a buffering agent in biological and biochemical research.

Uses of MOPSO Buffer:

  • This Good's Buffer is commonly used as a carrier electrolyte in capillary electrophoresis.
  • Researchers have been using it as a lysis and enzyme assay buffer.
  • Other applications of Mopso include spectrophotometry, fluorescence spectroscopy and isothermal titration calorimetry.
  • Since Mopso interacts with the peptide backbone of bovine serum albumin (BSA), it is used for the stabilization of BSA against thermal denaturation.

Metal binding: (Compare with other buffers)
Strong interaction with:


Weak interaction with:


Solubility in water: (Compare with other buffers)

  • 10g/100ml

Saturation at 0°C: (Compare with other buffers)

  • 0.75 M


  • Store at room temperature
Basic Information


Assay (titration)

≥ 99%

Useful pH range

6.2 – 7.6
Compare with other buffers

pKa (25°C)

6.7 – 7.1


White powder

Molecular formula


Molecular weight

225.3 g/mol

Solubility (10% in H2O)

Clear and Complete

Moisture (LOD)

≦ 1.0%

UV (1M in H2O) A260nm

≦ 0.04

UV (1M in H2O) A280nm

≦ 0.04

Customized specifications are available for bulk requests. Contact us to discuss your requirements.

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Synonyms / Similar names:

  • β-Hydroxy-4-morpholinepropanesulfonic acid
  • 3-Morpholino-2-hydroxypropanesulfonic acid
  • MOPSO Free Acid

What we offer:

  • Worldwide shipping
  • Certificate of Analysis (CoA)
  • Safety Data Sheet (SDS)
  • Analytical tests (DNase, RNase, protease activity, heavy metals and others upon request)

Lead time:

  • 15 business days after order confirmation
Useful pH range chart
Use our interactive chart below to compare the useful pH range of this product with other buffers’. Click in the product name to access more information about it.