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 4-N-[2-(cyclopropylmethoxy)ethyl]-2-N,4-N,6-trimethyl-5-nitropyrimidine-2,4-diamine is given. What is its corresponding molecular formula?
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C13H21N5O3
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