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18-Crown-6 is an organic compound with the formula [C2H4O]6 and the name of 1,4,7,10,13,16-hexaoxacyclooctadecane. It is a white, hygroscopic crystalline solid with a low melting point.
C 2630 (OTTO) Crown ether [18-Crown 6] Cas 17455-13-9 - used to accelerate various substitution reactions as well as enhances the power of nucleophiles such as potassium acetate.