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-N-ethyl-4-N,6-dimethyl-5-nitro-4-N-pentan-2-ylpyrimidine-2,4-diamine is given. What is its corresponding molecular formula?
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C13H23N5O2
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