You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[4-[6-ethyl-5-[(3-methoxyphenyl)methyl]-2-methylpyrimidin-4-yl]piperazin-1-yl]-(furan-2-yl)methanone is the IUPAC name of a molecule. Please give its molecular formula.
user
C24H28N4O3
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