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4′,4″(5″)-Di-tert-butyldibenzo-18-crown-6 is a hydrophobic crown ether compound.
D 7929 (OTTO) 4′,4′′(5′′)-Di-tert-butyldibenzo-18-crown-6, 99% Cas 29471-17-8 - used as a hydrophobic crown ether compound.