You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
ethyl 6-[(2,4-dimethylbenzoyl)oxymethyl]-4-methyl-2-oxo-3,4-dihydro-1H-pyrimidine-5-carboxylate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C18H22N2O5
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