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.

7,8,19,20-Tetrahydro-8-Methoxy-15,18-Etheno-2,6:9,13-Dimetheno-1,14-Benzodioxacyclodocosin-11,12,23,24-Tetrol CAS NO 107110-23-6

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CAS No.:107110-23-6

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7,8,19,20-Tetrahydro-15,18-Etheno-2,6:9,13-Dimetheno-1,14-Benzodioxacyclodocosin-11,12,19,24-Tetrol CAS NO 107110-25-8

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CAS No.:107110-25-8

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Bis(Benzo-15-Crown-5) CAS NO 108605-64-7

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CAS No.:108605-64-7

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1,5,9,13-Tetrathiacyclohexadecane-3,11-Diol CAS NO 109909-33-3

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CAS No.:109909-33-3

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4-Aminobenzo-15-Crown-5 Hydrochloride CAS NO 111076-66-5

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CAS No.:111076-66-5

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Heptakis-(2 3 6-Tri-o-Ethyl)-Beta- CAS NO 111689-01-1

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CAS No.:111689-01-1

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Heptakis-(2 6-Di-o-Ethyl)-Beta- CAS NO 111689-03-3

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CAS No.:111689-03-3

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Bis(12-Crown-4) CAS NO 114094-11-0

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CAS No.:114094-11-0

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