You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 6-N-(4-chloro-2-methylphenyl)-4-N-(2,4-dichlorophenyl)-5-nitropyrimidine-4,6-diamine by IUPAC nomenclature, provide its molecular formula.
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C17H12Cl3N5O2
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