You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 11-(4-dibenzofuran-4-yl-6-phenylpyrimidin-2-yl)-[1]benzofuro[3,2-b]carbazole by IUPAC nomenclature, provide its molecular formula.
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C40H23N3O2
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