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-[[5-(4-chlorophenyl)furan-2-yl]methyl]-6-oxo-4,5-dihydro-1H-pyridazine-3-carboxamide by IUPAC nomenclature, provide its molecular formula.
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C16H14ClN3O3
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