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Under IUPAC nomenclature, a molecule named 9-(1'-phenoxazin-10-ylspiro[3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene-8,9'-thioxanthene]-5-yl)carbazole-3,6-dicarbonitrile is given. What is its corresponding molecular formula?
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C49H26N6OS
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