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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 24857636

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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

Suggested Laboratory Gloves


Laboratory GlovesThis substance has been tested against several types of hand protection for CE compliance. Click below to find the recommended gloves for handling this product.




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
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References

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