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-[3-(2-chloro-5-methoxy-4-piperidin-1-ylphenyl)-1,4-oxazepan-4-yl]-6-methyl-1,3,5-triazin-2-amine is given. What is its corresponding molecular formula?
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C21H29ClN6O2
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