You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 2-chloro-N-[2-[4-[6-(2,4-dimethoxyphenyl)pyridazin-3-yl]-1,4-diazepan-1-yl]-2-oxoethyl]-N-(1-phenylethyl)benzamide by IUPAC nomenclature, provide its molecular formula.
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C34H36ClN5O4
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