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 N'-[6-(4-chlorophenyl)thieno[3,2-d]pyrimidin-4-yl]-1-(4-methoxyphenyl)-N,N-dimethylethane-1,2-diamine is given. What is its corresponding molecular formula?
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C23H23ClN4OS
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