Crown Ethers

Crown Ethers

Crown ethers are cyclic polyether compounds renowned for their exceptional ability to selectively bind metal cations and organic ammonium ions. Their cavity size and electron-rich oxygen atoms enable precise ion recognition, making them powerful phase-transfer catalysts and molecular hosts. Crown ethers facilitate nucleophilic substitutions, polymerizations, and complexation processes under mild conditions. In materials science, they support ion transport, supramolecular assembly, and sensor development. Their tunable ring size and functionalization allow customized binding properties for chemical separation, catalysis, and analytical chemistry. Crown ethers remain indispensable tools in host–guest chemistry and molecular design.

1,1-Dimethylsila-14-Crown-5 CAS NO 70851-49-9

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CAS No.:70851-49-9

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4'-Hydroxymethylbenzo-18-Crown-6 CAS NO 71015-62-8

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CAS No.:71015-62-8

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4,4'(5')-Di-T-Butyldibenzo-24-Crown-8 CAS NO 71035-28-4

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CAS No.:71035-28-4

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Benzylaza-15-Crown-5 CAS NO 71089-11-7

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CAS No.:71089-11-7

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4,7,10,13,16-Pentamethyl-5,8,11,14,17-Pentaoxa-2-Thiaicosan-19-Ol CAS NO 72187-30-5

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CAS No.:72187-30-5

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N,N'-Dicarboxymethyldiaza-18-Crown-6, 99+% CAS NO 72912-01-7

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CAS No.:72912-01-7

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(-)-(18-Crown-6)-2 3 11 12-Tetracarboxy& CAS NO 73891-15-3

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CAS No.:73891-15-3

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1,6,8,13-Tetraoxa-7,14-Dithiacyclotetradeca-3,10-Diene 7,14-Dioxide CAS NO 74039-55-7

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CAS No.:74039-55-7

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