You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named 4-chloro-N-[2-(2-methyl-6-morpholin-4-ylpyrimidin-4-yl)oxyethyl]-3-nitrobenzamide is given. What is its corresponding molecular formula?
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C18H20ClN5O5
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