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 ethane;2-[2-[(4-fluorophenyl)methylsulfanyl]-4-oxo-6,7-dihydro-5H-cyclopenta[d]pyrimidin-1-yl]-N'-hydroxyethanimidamide is given. What is its corresponding molecular formula?
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C18H23FN4O2S
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