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What is the molecular formula of the compound with this IUPAC name 6-carbazol-9-yl-9-[5-(3-isocyanocarbazol-9-yl)spiro[3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene-8,9'-thioxanthene]-3'-yl]carbazole-3-carbonitrile ?
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C61H33N7S
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