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C8210 Sigma-Aldrich

CHES

BioXtra, ≥99.0% (titration)

Synonym: 2-(Cyclohexylamino)ethanesulfonic acid

  • CAS Number 103-47-9

  • Empirical Formula (Hill Notation) C8H17NO3S

  • Molecular Weight 207.29

  •  Beilstein/REAXYS Number 2967601

  •  EC Number 203-115-6

  •  MDL number MFCD00003835

  •  PubChem Substance ID 24893031

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Properties

Related Categories BioXtra Buffers, Biochemicals and Reagents, Biological Buffers, Buffers A to Z, Good’s Buffers More...
InChI Key   MKWKNSIESPFAQN-UHFFFAOYSA-N
product line   BioXtra
assay   ≥99.0% (titration)
impurities   ≤0.0005% Phosphorus (P)
  ≤0.1% Insoluble matter
ign. residue   ≤0.1%
pH   3.0-5.0 (0.5 M in H2O)
useful pH range   8.6 - 10.0
pKa (25 °C)   9.3
solubility   H2O: 0.5 M, clear, colorless
anion traces   chloride (Cl-): ≤0.05%
  sulfate (SO42-): ≤0.05%
cation traces   Al: ≤0.0005%
  Ca: ≤0.001%
  Cu: ≤0.0005%
  Fe: ≤0.0005%
  K: ≤0.005%
  Mg: ≤0.0005%
  NH4+: ≤0.05%
  Na: ≤0.01%
  Pb: ≤0.001%
  Zn: ≤0.0005%
Featured Industry   Diagnostic Assay Manufacturing

Description

General description

CHES (2-(Cyclohexylamino) ethane sulfonic acid) is a derivative of amino acid taurine. It serves as a standard physiological buffer in the pH range of 8.5-9.5.

Application

CHES may be used:
• for pH adjustments and as a assay buffer in catechol oxidase activity measurements(32)
• as a buffer in electron paramagnetic resonance (EPR) spectroscopy and kinetic measurements(33)
• as a buffer for soil solution equivalent (SSE) yeast dextrose medium for screening pH optima for growth of Aridibacter nitratireducens A24_SHP-5_238T(34)

Packaging

25, 100 g in poly bottle

Safety & Documentation

Safety Information

Personal Protective Equipment 
RIDADR 
NONH for all modes of transport
WGK Germany 
3

Documents

Certificate of Analysis

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Certificate of Origin

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Protocols & Articles

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Peer-Reviewed Papers
15

References

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