You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named 1-methyl-2-[3,9,9-trimethyl-1-(trideuteriomethyl)fluoren-4-yl]pyridin-1-ium is given. What is its corresponding molecular formula?
user
C23H24N+
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