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-phenyl-6-N-(9-phenylcarbazol-3-yl)-3-N-(9-phenyl-7,8-dihydrocarbazol-3-yl)-3-N,6-N-bis(4-phenylphenyl)carbazole-3,6-diamine into molecular formula.
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C78H55N5
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