CHES Buffer

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Cell culture media | Electrophoresis
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Assay (titr.): ≥ 99% | CAS No: 103-47-9 | Useful pH range: 8.6 – 10.0 

Hopax is a manufacturer and supplier of CHES (CAS 103-47-9), a zwitterionic biological buffer often used as a buffering agent in biological and biochemical research.

Uses of CHES buffer:

Metal binding: (Compare with other buffers)

  • Weak interaction with: Cu, Pb, Cd and Zn

Solubility in water: (Compare with other buffers)

  • 5g/100ml

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

  • 1.14 M


  • Store at room temperature
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Assay (titration)

≥ 99 %

Useful pH range

8.6 – 10.0
Compare with other buffers

pKa (25°C)

9.3 – 9.7


White powder

Molecular formula


Molecular weight

207.29 g/mol

Solubility (5% in H2O) 

Clear and Complete

Moisture (LOD)

≦ 1.0%

UV(0.1M in H2O) A260nm

≦ 0.04

UV(0.1M in H2O) A280nm

≦ 0.05

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

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Synonyms / Similar names:

  • 2-(N-Cyclohexylamino)ethanesulfonic 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