You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 4-[4-(2-aminoethoxy)anilino]-2-[4-(cyanomethyl)piperidin-1-yl]-6-methanimidoylpyrimidine-5-carboxamide by IUPAC nomenclature, provide its molecular formula.
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C21H26N8O2
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