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Under IUPAC nomenclature, a molecule named N-[4-[4-[9bH-phenalen-2-yl-(9-phenylcarbazol-3-yl)amino]phenyl]phenyl]-6-tert-butyl-N-(6H-phenalen-2-yl)-9-phenylcarbazol-3-amine is given. What is its corresponding molecular formula?
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C78H58N4
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