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.

1,4,10-Trioxa-7,13-Diazacyclopentadecane CAS NO 31249-95-3

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CAS No.:31249-95-3

Grade:Pharmacy Grade

Content:99.90%

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Kryptofix(R) 211 CAS NO 31250-06-3

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CAS No.:31250-06-3

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Content:99.90%

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5,6-Benzo-4,7,13,16,21,24-Hexaoxa-1,10-Diazabicyclo[8.8.8]Hexacos-5-Ene CAS NO 31250-18-7

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CAS No.:31250-18-7

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Content:99.90%

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1,4,7,13,16,19-Hexaoxa-10,22-Diazacyclotetracosane CAS NO 31255-17-1

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CAS No.:31255-17-1

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Content:99.90%

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4-Vinylbenzo-15-Crown-5 CAS NO 31943-70-1

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CAS No.:31943-70-1

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trans-4,5'-Dinitrodibenzo-18-Crown-6 CAS NO 32082-45-4

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CAS No.:32082-45-4

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Content:99.90%

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4-Methylbenzo-15-Crown-5 CAS NO 32702-27-5

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CAS No.:32702-27-5

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Content:99.90%

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21-Crown-7 CAS NO 33089-36-0

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CAS No.:33089-36-0

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Content:99.90%

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