You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 10-methyl-4-[8-(10-methyl-9,9-diphenylacridin-4-yl)-10-spiro[cyclopentane-1,9'-fluorene]-4'-ylanthracen-1-yl]-9,9-diphenylacridine by IUPAC nomenclature, provide its molecular formula.
user
C83H62N2
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