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MACROCYCLES/CROWN ETHERS

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Crown ethers are organic compounds that have a special ring-shaped structure consisting of a chain of oxygen atoms linked by carbon atoms. They are used in chemical research and analysis due to their ability to selectively bind certain metal ions. Crown ethers can "coat" and isolate metal ions such as sodium, potassium or calcium in aqueous solutions, which makes them relevant for various applications in chemistry, biology and medicine. Their ability to selectively bind metal ions has contributed to crown ethers being investigated in various fields such as catalysis, chemical separation and drug development.

#	Art.-Nr.	Titel	Summenformel	CAS
1.	ST00781	1,5-Bis[2?-hydroxyphenoxy]-3-oxapentan	C16H18O5	23116-94-1
2.	ST00799	18-Crown-6	C12H24O6	17455-13-9
3.	ST01857	15-Crown-5, 99 %	C10H20O5	33100-27-5
4.	ST02496	1,10-Diaza-18-crown-6	C12H26N2O4	23978-55-4
5.	ST02497	1,7-Diaza-15-crown-5	C10H22N2O3	31249-95-3
6.	ST02937	Dicyclohexyl-18-crown-6	C20H36O6	16069-36-6
7.	ST02938	12-Crown-4	C8H16O4	294-93-9
8.	ST02940	Dibenzo-18-crown-6	C20H24O6	14187-32-7
9.	ST04244	4,4?(5?)-Di-tert.-butylcyclohexane-18-crown-6, mixture of isomers	C28H52O6	223719-29-7
10.	ST04245	4,4?(5?)-Di-tert.-butyldibenzo-18-crown-6, mixture of isomers	C28H40O6	29471-17-8
11.	ST04326	Dibenzo-21-crown-7	C22H28O7	14098-41-0
12.	ST04437	Benzo-15-Crown-5	C14H20O5	14098-44-3
13.	ST04438	4-Nitrobenzo-15-Crown-5	C14H19NO7	60835-69-0
14.	ST04439	4-Nitrobenzo-18-Crown-6	C16H23NO8	53408-96-1
15.	ST04502	Benzo-18-Crown-6	C16H24O6	14098-24-9
16.	ST04708	Dibenzo-24-crown-8	C24H32O8	14174-09-5
17.	ST05939	1-N-Phenylaza-15-crown-5	C16H25NO4	66750-10-5
18.	ST05979	N,N'-Dibenzyl-4,13-diaza-18-crown-6	C26H38N2O4	69703-25-9
19.	ST06116	Dibenzo-30-crown-10	C28H40O10	17455-25-3
20.	ST06192	1,11-bis(8-quinolinyloxy)-3,6,9-trioxaundecane	C26H28N2O5	57310-75-5
21.	ST06264	4,4'(4,5')(5,5')-di-tert.-butyl-dibenzo-21-crown-7 mixtures of isomers	C30H44O7	138203-34-6
22.	ST06283	6,7,9,10,17,18,20,21-octahydrodibenzo[b,k][1,4,7,10,13,16]hexaoxacyclooctadecine-2,13-diamine	C20H26N2O6	31406-52-7
23.	ST06284	6,7,9,10,17,18,20,21-octahydrodibenzo[b,k][1,4,7,10,13,16]hexaoxacyclooctadecine-2,14-diamine	C20H26N2O6	31352-45-1
24.	ST06438	Dinaphtho-24-crown-8	C32H36O8	17455-24-2
25.	ST06505	Di(4,4?-biphenyl)-24-crown-8, mixture of isomers	C36H40O8	3027923-31-2