MOPSO Buffer

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Cell culture media | Electrophoresis
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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
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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