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What is the molecular formula of the compound with this IUPAC name ethyl (1S,4S,5R,9S,10S,13S)-5,9,13-trimethyl-15-(4-methylphenyl)-15,16-diazapentacyclo[11.5.1.01,10.04,9.014,18]nonadeca-14(18),16-diene-5-carboxylate ?
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C30H40N2O2
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