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158399

Sigma-Aldrich

Dibenzo-18-crown-6

98%

Synonym(s):

2,3,11,12-Dibenzo-1,4,7,10,13,16-hexaoxacyclooctadeca-2,11-diene, 6,7,9,10,17,18,20,21-Octahydrodibenzo[b,k][1,4,7,10,13,16]hexaoxacyclooctadecene, DB18C6

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About This Item

Empirical Formula (Hill Notation):
C20H24O6
CAS Number:
14187-32-7
Molecular Weight:
360.40
Beilstein:
1162153
EC Number:
238-041-3
MDL number:
MFCD00005098
UNSPSC Code:
12352005
PubChem Substance ID:
24849732
NACRES:
NA.22

Quality Level

100

Assay

98%

mp

162-164 °C (lit.)

SMILES string

C1COc2ccccc2OCCOCCOc3ccccc3OCCO1

InChI

1S/C20H24O6/c1-2-6-18-17(5-1)23-13-9-21-11-15-25-19-7-3-4-8-20(19)26-16-12-22-10-14-24-18/h1-8H,9-16H2

InChI key

YSSSPARMOAYJTE-UHFFFAOYSA-N

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General description

Dibenzo-18-crown-6 is a macrocyclic ligand used in the selective binding and extraction of alkali metal cations in solution phase.

Application

Phase-transfer catalyst employed in monoazaporphyrin syntheses. Agent used for ion transfer across membranes and as a synthon for preparation of liquid crystal polyesters.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKCQ8461
MKBW5424V
MKBW5646V
MKBV3818V
MKBT7990V

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18-Crown-6 purum, ≥99.0% (GC)

Sigma-Aldrich

28125

18-Crown-6

Tetrahedron Letters, 36, 1567-1567 (1995)
Acta Polym., 45, 308-308 (1994)
Micheál D Scanlon et al.
Analytical chemistry, 80(15), 5743-5749 (2008-06-26)
The detection of peptides is an important bioanalytical challenge, as they are a generic class of potent molecules of biomedical and biopharmaceutical significance. In this work, the electrochemistry of seven oligopeptides at microscaled interfaces between two immiscible electrolyte solutions (microITIES)
Jaroslav Kríz et al.
The journal of physical chemistry. A, 112(41), 10236-10243 (2008-09-25)
Interaction of dibenzo-18-crown-6 (DBC) with H 3O (+) (HP) in nitrobenzene- d 5 and dichloromethane- d 2 was studied by using (1)H and (13)C NMR spectra and relaxations, FTIR spectra, and quantum chemical DFT calculations. NMR shows that the DBC*HP
J L Mooney et al.
The American journal of physiology, 255(3 Pt 1), C408-C412 (1988-09-01)
Liquid ion-exchanger microelectrodes based on Corning code 477317 K+ exchanger are known to be much more sensitive to quaternary ammonium ions than to K+. In the presence of such cations, the capability of measuring K+ activities with Corning microelectrodes may
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