12-Crown-4CAS NO.: 294-93-9

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1 Kilogram	FOB Price:USD 4.0000 -5.0000

1 Kilogram

FOB Price:USD 4.0000 -5.0000

1,4,7,10-TETRAOXYCYCLODODECANE 12-CROWN 4-ETHER 1,4,7,10-Tetraoxacyclododecane, 12-Crown-4

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Chemical Properties	clear colorless to slightly yellow liquid after
Uses	An aprotic "solvent" for alkali metals, the sodium solution is a strong reducing agent
Definition	ChEBI: A crown ether that is cyclododecane in which the carbon atoms at positions 1, 4, 7 and 10 have been replaced by oxygen atoms.
Purification Methods	The distilled crude product has to be recrystallised from pentane at -20o to remove acyclic material. It is then dried over P2O5. It complexes Li. [Anet et al. Acta Chem Scand 27 3395 1973, Beilstein 19/11 V 334.]