You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named N-[[(2R)-1,4-dioxan-2-yl]methyl]-2-(6-oxo-3-phenylpyridazin-1-yl)acetamide by IUPAC nomenclature, provide its molecular formula.
user
C17H19N3O4
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