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Dibenzo-18-crown-6

Dibenzo-18-crown-6 structure

CAS No.: 14187-32-7

Chemical Name:: Dibenzo-18-crown-6

Synonyms: DB18C6;ibenzo-18-crown-6;6,7,9,10,17,18,20,21-Octahydrodibenzo[b,k][1,4,7,10,13,16]hexaoxacyclooctadecine;crown18;Crown 18;crown-18;Dibenzocrown;DIBENZO-18-CROWN-6;Dibenzo-18-crown-8;Tin(II) Ionophore I

CBNumber:: CB0436113

Molecular Formula:: C20H24O6

Molecular Weight:: 360.4

MDL Number:: MFCD00005098

MOL File:: 14187-32-7.mol

MSDS File:: SDS

Last updated:2024-11-01 18:09:03

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Dibenzo-18-crown-6 Properties

Melting point	162-164 °C (lit.)
Boiling point	380-384 °C (679 mmHg)
Density	1.1801 (rough estimate)
refractive index	1.5200 (estimate)
Flash point	380-384°C/679mm
storage temp.	Store below +30°C.
solubility	0.007g/l
form	Fluffy Powder
color	White to slightly beige
Water Solubility	sparingly soluble
Sensitive	air sensitive
λmax	277nm(CH2Cl2)(lit.)
Merck	14,2602
BRN	1162153
InChIKey	YSSSPARMOAYJTE-UHFFFAOYSA-N
CAS DataBase Reference	14187-32-7(CAS DataBase Reference)
FDA UNII	0A7W45JCS9
NIST Chemistry Reference	Dibenzo-18-crown-6(14187-32-7)
EPA Substance Registry System	Dibenzo[b,k][1,4,7,10,13,16]hexaoxacyclooctadecin, 6,7,9,10,17,18,20,21-octahydro- (14187-32-7)

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS07

Signal word

Warning

Hazard statements

H319-H315-H335

Precautionary statements

P261-P280a-P304+P340-P305+P351+P338-P405-P501a-P264-P280-P305+P351+P338+P337+P313

Hazard Codes

Xi,Xn

Risk Statements

36-36/37/38-20/21/22

Safety Statements

26-37/39-36

WGK Germany

RTECS

HP5386000

Hazard Note

Irritant

TSCA

Yes

HS Code

29329995

Toxicity

LD50 orally in Rabbit: 2600 mg/kg

NFPA 704

	1
2		0

Dibenzo-18-crown-6 price More Price(41)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	8.11731	Crown ether/Dibenzo-18-crown-6 for synthesis	14187-32-7	5G	$36.8	2024-03-01	Buy
Sigma-Aldrich	158399	Dibenzo-18-crown-6 98%	14187-32-7	2.5g	$18.78	2024-03-01	Buy
Sigma-Aldrich	8.11731	Crown ether/Dibenzo-18-crown-6 for synthesis	14187-32-7	50g	$245	2024-03-01	Buy
Sigma-Aldrich	158399	Dibenzo-18-crown-6 98%	14187-32-7	10g	$65.8	2024-03-01	Buy
TCI Chemical	D1533	Dibenzo-18-crown 6-Ether >99.0%(GC)	14187-32-7	5g	$16	2024-03-01	Buy

Product number	Packaging	Price	Buy
8.11731	5G	$36.8	Buy
158399	2.5g	$18.78	Buy
8.11731	50g	$245	Buy
158399	10g	$65.8	Buy
D1533	5g	$16	Buy

Dibenzo-18-crown-6 Chemical Properties,Uses,Production

Description

Dibenzo-18-crown-6 (DB18C6) is the first crown ether synthesized by Pedersen in 1967 and has the strongest binding affinity to a potassium cation (K+) among alkali metal cations. With the similarity of the sizes between K+ and the cavity of crown ether, it had long been believed that the binding selectivity comes from the size relationship between the metal cation and the cavity. However, it was reported that under identical experimental conditions, K+ bound strongly to all crown ethers (12-crown-4 to 24-crown-8) irrespective of the ring size among other cations such as Na+, Ca2+, and NH4+. Moreover, in the gas phase, 18-crown-6 (18C6) and dibenzo18-crown-6 (DB18C6) form preferential complexation in the order Li+ > Na+ > K+ > Rb+ > Cs+, while in the aqueous solution both of them show highest complexion capacity for K+ rather than Li+[1-2].

Chemical Properties

white to slightly beige fluffy powder

Uses

Crown ether/Dibenzo-18-crown-6 for synthesis. CAS 14187-32-7, molar mass 360.41 g/mol.

Uses

Dibenzo-18-crown-6, is used as an important raw material and intermediate used in organic Synthesis, pharmaceuticals, agrochemicals and dyestuff. It is an important organic intermediate.

Definition

ChEBI: Dibenzo-18-crown-6 is a crown ether that is 18-crown-6 ortho-fused to two benzene rings at positions 8-9 and 17-18. It has a role as a phase-transfer catalyst. It is a member of benzenes and a crown ether.

Purification Methods

Crystallise it from *benzene, n-heptane or toluene and dry it under vacuum at room temperature for several days. [Szezygiel J Phys Chem 91 1252 1987, V.gtle ed. Top Corr Chem (Host Guest Complex Chemistry) 98 1981.]

References

[1] Pooja Sahu, Jayant K. Singh, Sk. M. Ali. “Structural and dynamical properties of Li+-dibenzo-18-crown-6(DB18C6) complex in pure solvents and at the aqueous-organic interface.” Journal of Molecular Modeling 20 9 (2014).
[2] Chang Min Choi, Nam Joon Kim, Jiyoung Heo. “Binding selectivity of dibenzo-18-crown-6 for alkali metal cations in aqueous solution: A density functional theory study using a continuum solvation model.” Chemistry Central Journal 6 1 (2012): 84.

Dibenzo-18-crown-6 synthesis

Synthesis of Dibenzo-18-crown-6 from Catechol and 2,2'-Dichlorodiethyl ether

Dibenzo-18-crown-6 Preparation Products And Raw materials

Raw materials

Phenol, 2-[2-(2-chloroethoxy)ethoxy]- 1,2-bis[2-(2-chloroethoxy)ethoxy]benzene 1,5-BIS(O-HYDROXYPHENOXY)-3-OXAPENTANE 1,2-Bis[2-(2-formylphenoxy)ethoxy]ethane 2,2'-Dichlorodiethyl ether

1,4-Diazabicyclo[2.2.2]octane Dihydrochloride Salicylaldehyde Catechol PIPERAZINE DIHYDROCHLORIDE

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Preparation Products

Dicyclohexano-18-crown-6

Dibenzo-18-crown-6 Suppliers

Global( 512)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
weifang runzhong fine chemical co., ltd	536-7868377 +8618653686003	sq@runzhongchem.com	China	187	58
Chongqing Chemdad Co., Ltd	+86-023-6139-8061 +86-86-13650506873	sales@chemdad.com	China	39894	58
Hebei Weibang Biotechnology Co., Ltd	+8615531157085	abby@weibangbio.com	China	8812	58
Shaanxi Dideu Medichem Co. Ltd	+86-29-81148696 +86-15536356810	1022@dideu.com	China	3882	58
Hebei Chuanghai Biotechnology Co,.LTD	+86-13131129325	sales1@chuanghaibio.com	China	5893	58
hebei hongtan Biotechnology Co., Ltd	+86-86-1913198-3935 +8617331935328	sales03@chemcn.cn	China	970	58
Capot Chemical Co.,Ltd.	+86-（0）57185586718 +86-13336195806	sales@capot.com	China	29791	60
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21634	55
Shanghai Time Chemicals CO., Ltd.	+86-021-57951555 +8617317452075	jack.li@time-chemicals.com	China	1803	55
Hefei TNJ Chemical Industry Co.,Ltd.	+86-0551-65418679 +8618949832763	info@tnjchem.com	China	2986	55

Supplier	Advantage
weifang runzhong fine chemical co., ltd	58
Chongqing Chemdad Co., Ltd	58
Hebei Weibang Biotechnology Co., Ltd	58
Shaanxi Dideu Medichem Co. Ltd	58
Hebei Chuanghai Biotechnology Co,.LTD	58
hebei hongtan Biotechnology Co., Ltd	58
Capot Chemical Co.,Ltd.	60
Henan Tianfu Chemical Co.,Ltd.	55
Shanghai Time Chemicals CO., Ltd.	55
Hefei TNJ Chemical Industry Co.,Ltd.	55

View Lastest Price from Dibenzo-18-crown-6 manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2024-11-22	Dibenzo-18-crown-6 14187-32-7	US $0.00-0.00 / kg	1kg	99%min	500kg	WUHAN FORTUNA CHEMICAL CO., LTD
2024-11-22	Dibenzo-18-crown-6 14187-32-7	US $30.00 / kg	1kg	99%	2000kg	hebei hongtan Biotechnology Co., Ltd
2024-11-01	Dibenzo-18-crown-6 14187-32-7	US $10.00 / KG	1KG	99%	10 mt	Hebei Weibang Biotechnology Co., Ltd

Dibenzo-18-crown-6
14187-32-7
US $0.00-0.00 / kg
99%min
WUHAN FORTUNA CHEMICAL CO., LTD

Dibenzo-18-crown-6
14187-32-7
US $30.00 / kg
99%
hebei hongtan Biotechnology Co., Ltd

Dibenzo-18-crown-6
14187-32-7
US $10.00 / KG
99%
Hebei Weibang Biotechnology Co., Ltd

Dibenzo-18-crown-6 Spectrum

Dibenzo-18-crown-6(14187-32-7)MS Dibenzo-18-crown-6(14187-32-7)¹HNMR Dibenzo-18-crown-6(14187-32-7)¹³CNMR Dibenzo-18-crown-6(14187-32-7)IR1 Dibenzo-18-crown-6(14187-32-7)IR2 Dibenzo-18-crown-6(14187-32-7)Raman

14187-32-7(Dibenzo-18-crown-6)Related Search:

Benzophenone Bis(2-ethylhexyl) phthalate Diphenyl ether 12-Crown-4 p-Phenylenediamine

Isophthalic acid Phthalic acid Potassium hydrogen phthalate DIBENZO-30-CROWN-10 4',4''(5'')-DI-TERT-BUTYLDIBENZO-18-CROWN-6

4',4''(5'')-DIACETYLDIBENZO-18-CROWN-6 PERHYDRO-DIBENZO-18-CROWN-6 2,4a-DIBENZO-18-CROWN-6, 99+%,[2,4!-DIBENZO-18-CROWN-6, 99+% Diethyl ether 18-Crown-6

4',4''(5'')-DIVALERYLDIBENZO-18-CROWN-6 4,4'(5')-DIBROMODIBENZO-18-CROWN-6 4'-AMINODIBENZO-18-CROWN-6

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CROWN ETHER/DIBENZO-18-CROWN-6 DIBENZO-18-CROWN-6 dibenzo[b,k][1,4,7,10,13,16]hexaoxacyclooctadecin,6,7,9,10,17,18,20,21-octahyd dibenzo[bk][1,4,7,10,13,16]hexaoxacyclooctadecane Dibenzocrown Diphenyl-18-crown-6-polyether k](1,4,7,10,13,16)hexaoxacyclooctadecin,6,7,9,10,17,18,20,21-octahydro-Dibenzo[b 6,7,9,10,12,13,20,21-Octahydrodibenzo[b,k][1,4,7,10,13,16]hexaoxacyclo-octadecin Dibenzocrownminwhitepowder dibenzo[a,j]-1,4,7,10,13,16-hexaoxacyclooctadeca-2,11-diene 2,3,11,12-Dibenzo-1,4,7,10,13,16-Hexaoxacyclooctad Tin(II) Ionophore I DIBENZO-18-CROWN-6(6,7,9,10,17,18,20,21-OCTAHYDRODIBENZO) 6,7,9,10,17,18,20,21-Octahydrodibenzo[b,k][1,4,7,10,13,16] hexaoxacyclooctadecene Crown ether/Dibenzo-18-crown-6 for synthesis DIBENZO-18-CROWN 6-ETHER 2,3,11,12-DIBENZO-1,4,7,10,13,16-HEXAOXACYCLOOCTADECA-2,11-DIENE 6,7,9,10,17,18,20,21-OCTAHYDRODIBENZO 6,7,9,10,17,18,20,21-OCTAHYDRODIBENZO[B,K][1,4,7,10,13,16]HEXAOXACY-CLOOCTADECENE CROWN ETHER/DIBENZO-18-CROWN-6 FOR SYNTH Dibenzo-18-crown-6 Dibenzo-18-crown-6 ,98% Dibenzo-18-crown-6, 98% 10GR Dibenzo-18-crown-6, 98% 50GR Dibenzo-18-crown-6, 6,7,9,10,17,18,20,21-Octahydrodibenzo[b,k][1,4,7,10,13,16]hexaoxacyclooctadecene, 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, 2,3,11,12-Dibenzo-1,4,7,10,13,16-hexaoxacyclooctadeca-2,11-diene Dibenzo-18-crown-6, min. 98% 2,2'-[Oxybis(ethyleneoxy)]-[1,1'-[oxybis(ethyleneoxy)]bisbenzene] 2,2'-[Oxybis(ethyleneoxy)][1,1'-[oxybis(ethyleneoxy)]bisbenzene] Diabenzo-18-crown-6 Dibenzo-18-crown-6 ,97% Dibenzo-18-crown-6,2,3,11,12-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 2,3,11,12-dibenzo-1,4,7,10,13,16-hexaoxacyclooctadeca-2,11-diene,dibenzo-18-crown-6 6,7,9,10,17,18,20,21-octahydrodibenzo(b,k)(1,4,7,10,13,16)hexaoxacyclooctade 6,7,9,10,17,18,20,21-OCTAHYDRODIBENZO(b,k)(1,4,7,10,13,16)HEXAOXACYCLOOCTADECIN Crown 18 crown18 crown-18 Dibenzo[b,k][1,4,7,10,13,16]hexaoxacyclooctadecane Dibenzo[b,k][1,4,7,10,13,16]hexaoxacyclooctadecin, 6,7,9,10,17,18,20,21-octahydro- 1,4,7,14,17,20-HEXAOXA-[7.7]ORTHOCYCLOPHANE Dibenzo-18-crown-6, 98+% Dibenzo-18-crown-6,min.98% 1,4,7,14,17,20-HEXAOXA[7.7]ORTHOCYCLOPHANE
DIBENZO-18-CROWN-6 Diphenyl and - 18 - crown ether - 6 Dibenzo-18-crown-6 98% dibenzanthrance-18-crown-6 6,7,9,10,12,13,15,16-Octahydrodibenzo[b,e][1,4,7,10,13,16]hexaoxacyclooctadecine Dibenzo-18-crown6-Ether> Dibenzo-18-crown-6, 98%, reagent grade Dibenzo[a,j]-1,4,7,10,13,16-hexaoxacyclooctadeca-2,11-dien 6,7,9,10,17,18,20,21-Octahydrodibenzo[b,k][1,4,7,10,13,16]hexaoxacyclooctadecine DB18C6 ibenzo-18-crown-6 Dibenzo-18-crown-8 Dibenzo-18-crown-ether-6 2,5,8,15,18,21-hexaoxatricyclo[20.4.0.0?,1?]hexacosa-1(26),9,11,13,22,24-hexaene Dibenzanthracene-18-Crown-6