You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 8-methyl-3-[2-methyl-3-[1-methyl-5-[[5-(4-methylpiperazin-1-yl)pyridin-2-yl]methyl]-6-oxopyridin-3-yl]phenyl]quinolizin-4-one by IUPAC nomenclature, provide its molecular formula.
user
C34H35N5O2
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