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29311 Sigma

CHES

BioUltra, ≥99.5% (T)

Synonym: 2-(Cyclohexylamino)ethanesulfonic acid

  • CAS Number 103-47-9

  • Empirical Formula (Hill Notation) C8H17NO3S

  • Molecular Weight 207.29

  •  Beilstein Registry Number 2967601

  •  EC Number 203-115-6

  •  MDL number MFCD00003835

  •  PubChem Substance ID 57648360

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Properties

Related Categories Alphabetical, BioUltra Buffers, Biochemicals and Reagents, Biological Buffers
InChI Key   MKWKNSIESPFAQN-UHFFFAOYSA-N
product line   BioUltra
assay   ≥99.5% (T)
impurities   insoluble matter, passes filter test
ign. residue   ≤0.05%
loss   ≤0.5% loss on drying, 110 °C
pH   3.0-5.0 (25 °C, 0.5 M in H2O)
useful pH range   8.6 - 10.0
pKa (25 °C)   9.3
solubility   H2O: soluble0.5 M at 20 °C, clear, colorless
anion traces   chloride (Cl-): ≤50 mg/kg
  sulfate (SO42-): ≤500 mg/kg
cation traces   Al: ≤5 mg/kg
  As: ≤0.1 mg/kg
  Ba: ≤5 mg/kg
  Bi: ≤5 mg/kg
  Ca: ≤10 mg/kg
  Cd: ≤5 mg/kg
  Co: ≤5 mg/kg
  Cr: ≤5 mg/kg
  Cu: ≤5 mg/kg
  Fe: ≤5 mg/kg
  K: ≤50 mg/kg
  Li: ≤5 mg/kg
  Mg: ≤5 mg/kg
  Mn: ≤5 mg/kg
  Mo: ≤5 mg/kg
  Na: ≤50 mg/kg
  Ni: ≤5 mg/kg
  Pb: ≤5 mg/kg
  Sr: ≤5 mg/kg
  Zn: ≤5 mg/kg
λ   0.5 M in H2O
UV absorption   λ: 260 nm Amax: 0.08
  λ: 280 nm Amax: 0.05

Description

Other Notes

Buffer for studying pH-dependent processes in enzymology; Has a high affinity for the iodoacetate binding site of liver alcohol dehydrogenase.

Price and Availability


Laboratory Gloves

Interactive Buffer Table
Safety & Documentation

Safety Information

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

Documents

Certificate of Analysis

Certificate of Origin

Protocols & Articles

Related Content

BioUltra Biological Buffers

A buffer, as defined by Van Slyke [1], is "a substance which by its presence in solution increases the amount of acid or alkali that must be added to cause unit change in pH". Buffers are thus very i...
Keywords: Absorption, Adsorption, Biochemistry, Biological Buffers, Biological processes, Buffers, PAGE

Peer-Reviewed Papers
15

References

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