You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named N-[(2E,4E)-1-[[4-(dimethylamino)piperidine-4-carbonyl]-formylamino]-4-ethenyl-2,8,8-trimethylnona-2,4-dien-5-yl]ethanimidoyl cyanide by IUPAC nomenclature, provide its molecular formula.
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C26H41N5O2
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