You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named [3-[[4-[2-(3,4-dimethoxyphenyl)ethyl-methylamino]-6-phenylpyrimidin-2-yl]sulfanylmethyl]phenyl]-(4-methylpiperazin-1-yl)methanone by IUPAC nomenclature, provide its molecular formula.
user
C34H39N5O3S
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