You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named 2,4-diamino-5-[2-(3,4,5-trimethoxy-N-methylanilino)ethyl]-1H-pyrimidin-6-one is given. What is its corresponding molecular formula?
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C16H23N5O4
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