You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 1-[4-(2-imidazolidin-2-ylethylamino)-6-methyl-1,3-diazinan-2-yl]-3-(3-methoxycyclohexyl)urea into its molecular formula.
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C18H37N7O2
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