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-cyclopropyl-2-methyl-7-nitro-3-oxo-N-(piperidine-3-carbonyl)-4H-1,4-benzoxazine-2-carboxamide by IUPAC nomenclature, provide its molecular formula.
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C19H22N4O6
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