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80833

Supelco

18-Crown-6

suitable for ion chromatography, ≥99.0% (GC)

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Synonym(s):
1,4,7,10,13,16-Hexaoxacyclooctadecane
Empirical Formula (Hill Notation):
C12H24O6
CAS Number:
17455-13-9
Molecular Weight:
264.32
Beilstein:
1619616
EC Number:
241-473-5
MDL number:
MFCD00005113

Quality Level

100

Assay

≥99.0% (GC)

form

solid

technique(s)

ion chromatography: suitable

mp

42-45 °C (lit.)

cation traces

Al: ≤1 mg/kg
Ba: ≤1 mg/kg
Bi: ≤1 mg/kg
Ca: ≤1 mg/kg
Cd: ≤1 mg/kg
Co: ≤1 mg/kg
Cr: ≤1 mg/kg
Cu: ≤1 mg/kg
Fe: ≤1 mg/kg
K: ≤20 mg/kg
Li: ≤1 mg/kg
Mg: ≤1 mg/kg
Mn: ≤1 mg/kg
Mo: ≤1 mg/kg
NH4+: ≤10 mg/kg
Na: ≤20 mg/kg
Ni: ≤1 mg/kg
Pb: ≤1 mg/kg
Sr: ≤1 mg/kg
Zn: ≤1 mg/kg

SMILES string

O1CCOCCOCCOCCOCCOCC1

InChI

1S/C12H24O6/c1-2-14-5-6-16-9-10-18-12-11-17-8-7-15-4-3-13-1/h1-12H2

InChI key

XEZNGIUYQVAUSS-UHFFFAOYSA-N

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This Item
274984281258.11684
18-Crown-6 suitable for ion chromatography, ≥99.0% (GC)

Supelco

80833

18-Crown-6

18-Crown-6 ≥99.0%

Sigma-Aldrich

274984

18-Crown-6

18-Crown-6 purum, ≥99.0% (GC)

Sigma-Aldrich

28125

18-Crown-6

Crown ether/18-Crown-6 for synthesis

Sigma-Aldrich

8.11684

Crown ether/18-Crown-6

form

solid

form

solid

form

solid

form

solid

mp

42-45 °C (lit.)

mp

42-45 °C (lit.)

mp

38-41 °C, 42-45 °C (lit.)

mp

36-39 °C

Quality Level

100

Quality Level

200

Quality Level

100

Quality Level

200

technique(s)

ion chromatography: suitable

technique(s)

-

technique(s)

-

technique(s)

-

cation traces

Al: ≤1 mg/kg

cation traces

-

cation traces

-

cation traces

-

General description

18-Crown-6 belongs to the class of Crown ethers, a group of macrocyclic polyethers, which have become valuable tools in organic synthesis, since they can solvate alkali, alkaline-earth and transition-metal cations in nonpolar, aprotic solvents. 18-Crown-6 is found to be most suitable for complexing with K+, NH4+ and Rb+ cations.

Application

18-Crown-6 may be used as a complexing agent, along with the mobile phase for the separation of alkali and alkaline earth metal and amine cations and its application for the direct analysis of ammonia from nitrogenase is studied. It may also be used as a complexing agent in the determination of inorganic and organic anions, alkali, alkaline earth and transition metal cations by capillary electrophoresis using contactless conductometric detector.
Learn more in the Product Information
Can be useful as phase-transfer catalysts.

Other Notes

Macrocyclic polyethers with repeating (-CH2CH2O) units. The compounds are ionophoric (form stable complexes with cations).

Linkage

Visit the IC Portal to learn more

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Legal Information

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H302

Precautionary Statements

P301 + P312 + P330

Hazard Classifications

Acute Tox. 4 Oral

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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Use of mobile phase 18-crown-6 to improve peak resolution between mono-and divalent metal and amine cations in ion chromatography
Richens AD, et al.
Journal of Chromatography A, 1016(2), 155-164 (2003)
Simultaneous determination of inorganic and organic anions, alkali, alkaline earth and transition metal cations by capillary electrophoresis with contactless conductometric detection
Kuban P, et al.
Electrophoresis, 23(21), 3725-3734 (2002)

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