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What is the molecular formula of the molecule 2-(4-ethylphenyl)-6-(2-hydroxy-3-prop-2-enylphenyl)-8-methyl-3a,4,6,11,11a,11b-hexahydronaphtho[6,7-e]isoindole-1,3,7,10-tetrone ?
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C34H31NO5
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