You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[(1S)-1-(2-chloro-6-fluorophenyl)ethyl]-1-oxo-3,4-dihydro-2H-isoquinoline-7-sulfonamide is the IUPAC name of a molecule. Please give its molecular formula.
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C17H16ClFN2O3S
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