You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule ethane;3-methyl-6-[6-methyl-9-(4-phenylphenyl)-7,8-dihydrocarbazol-3-yl]-9-(4-phenylphenyl)carbazole into molecular formula.
user
C52H44N2
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