You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 2-[4-[2-(3-cyanocarbazol-9-yl)phenyl]-3-(2-cyanophenyl)phenyl]-4-methyl-2-azatetracyclo[7.5.0.01,10.03,8]tetradeca-3(8),6,11,13-tetraene-12-carbonitrile into its molecular formula.
user
C47H31N5
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