You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 9-dibenzofuran-2-yl-2,7-bis(9-phenylcarbazol-2-yl)carbazole;9-dibenzofuran-4-yl-2,7-bis(9-phenylcarbazol-2-yl)carbazole;9-dibenzofuran-2-yl-3-(9-phenylcarbazol-2-yl)-6-(9-phenylcarbazol-3-yl)carbazole;9-dibenzofuran-4-yl-2-(9-phenylcarbazol-2-yl)-7-(9-phenylcarbazol-3-yl)carbazole;9-dibenzofuran-4-yl-3-(9-phenylcarbazol-2-yl)-6-(9-phenylcarbazol-3-yl)carbazole into molecular formula.
user
C300H185N15O5
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