80833

18-Crown-6

suitable for ion chromatography, ≥99.0% (GC)

• Synonyme(s) : 1,4,7,10,13,16-Hexaoxacyclooctadecane
• Formule empirique (notation de Hill) : C₁₂H₂₄O₆
• Numéro CAS: 17455-13-9
• Poids moléculaire : 264.32
• EC Number: 241-473-5
• UNSPSC Code: 12352005
• NACRES: NB.21
• Beilstein/REAXYS Number: 1619616
• MDL number: MFCD00005113
• Assay: ≥99.0% (GC)
• Form: solid

Propriétés

• Quality Segment: 100
• assay: ≥99.0% (GC)
• form: solid
• greener alternative product characteristics: Catalysis; Learn more about the Principles of Green Chemistry.
• sustainability: Greener Alternative Product
• 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
• greener alternative category: Aligned
• 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

Description

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.

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Application

Peut être utile en tant que catalyseur de transfert de phase

Learn more in the Product Information

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.

Other Notes

Polyéthers macrocyclique avec des unités répétitives (-CH₂CH₂O). Les composés sont des ionophores (forment des complexes stables avec des cations).

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Legal Information

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

Informations sur la sécurité

• pictograms: GHS07
• signalword: Warning
• hcodes: H302
• pcodes: P301 + P312 + P330
• Hazard Classifications: Acute Tox. 4 Oral
• Classe de stockage: 11 - Combustible Solids
• wgk: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable