You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 2-[3-[7-[4-[4-[7-(3,5-dipyridin-2-ylphenyl)-9,9-dimethylfluoren-2-yl]phenyl]phenyl]-9,9-dimethylfluoren-2-yl]-5-pyridin-2-ylphenyl]pyridine into its molecular formula.
user
C74H54N4
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