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20-Oxa-penta-cyclo-[15.2.1.02,16.03,8.010,15]icosa-2(16),3,5,7,10(15),11,13,18-octaen-9-one

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The mol-ecules of the title compound, C19H12O2, adopt a saddle shape, the o-xylylene fragments are almost planar. The carbonyl group and the ether oxygen atom are located on the same side of the carbon skeleton. The mol-ecules are arranged in strands with alte... ...