You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule 3-N-[(Z)-(5-bromo-2-methoxy-3-nitrophenyl)methylideneamino]-5-ethyl-1,2,4-triazole-3,4-diamine into molecular formula.
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C12H14BrN7O3
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