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Convert the IUPAC name of a molecule 15-(2,6-diphenylpyridin-4-yl)-9-phenyl-11-oxa-19-thia-9-azapentacyclo[10.7.0.02,10.03,8.013,18]nonadeca-1(12),2(10),3,5,7,13(18),14,16-octaene into molecular formula.
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C39H24N2OS
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