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477249

Sigma-Aldrich

Dibenzo-21-crown-7

97%

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Synonym(s):
6,7,9,10,12,13,20,21,23,24-Decahydrodibenzo[b,k][1,4,7,10,13,16,19]heptaoxacycloheneicosin, Dibenzo-21-crown-7 ether
Empirical Formula (Hill Notation):
C22H28O7
CAS Number:
Molecular Weight:
404.45
Beilstein/REAXYS Number:
1693830
MDL number:
PubChem Substance ID:
NACRES:
NA.22

Quality Level

assay

97%

form

solid

mp

103-107 °C (lit.)

SMILES string

C1COCCOc2ccccc2OCCOCCOc3ccccc3OCCO1

InChI

1S/C22H28O7/c1-3-7-21-19(5-1)26-15-11-23-9-10-24-12-16-27-20-6-2-4-8-22(20)29-18-14-25-13-17-28-21/h1-8H,9-18H2

InChI key

JKCQOMAQPUYHPL-UHFFFAOYSA-N

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This Item
419974332518253197
Dibenzo-21-crown-7 97%

477249

Dibenzo-21-crown-7

4′-Formylbenzo-15-crown-5 97%

419974

4′-Formylbenzo-15-crown-5

Dibenzo-30-crown-10 98%

332518

Dibenzo-30-crown-10

Dibenzo-24-crown-8 98%

253197

Dibenzo-24-crown-8

Quality Level

100

Quality Level

200

Quality Level

100

Quality Level

100

mp

103-107 °C (lit.)

mp

78-81 °C (lit.)

mp

106-108 °C (lit.)

mp

103-105 °C (lit.)

form

solid

form

-

form

solid

form

-

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


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Beshare Hashemi et al.
Journal of separation science, 38(24), 4248-4254 (2015-10-16)
In this work, we report the first application of ion-imprinted technology via precipitation polymerization for simple and practical determination of rubidium ions. The rubidium-ion-imprinted polymer nanoparticles were prepared using dibenzo-21-crown-7 as a selective ligand, methacrylic acid as functional monomer, ethylene

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