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 (9S)-9-(2-chloro-6-fluorophenyl)-8,9-dihydro-6H-[1,2,5]thiadiazolo[3,4-f]quinolin-7-one is given. What is its corresponding molecular formula?
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C15H9ClFN3OS
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