You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name N-[(2S)-1-(2-chlorophenyl)propan-2-yl]-3-(4-fluorophenyl)-2-sulfanylidene-1H-imidazole-4-carboxamide into its molecular formula.
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C19H17ClFN3OS
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