You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule N'-[C-[2-amino-4-(difluoromethyl)pyrimidin-5-yl]-N-[2-[methyl-[2-(methylamino)ethyl]amino]ethyl]carbonimidoyl]-N-methylidenemorpholine-4-carboximidamide into molecular formula.
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C18H29F2N9O
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