You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (Z)-4-amino-N-[(2,5-difluorophenyl)methyl]-5,5,5-trifluoro-2-imino-N-[2-(thiolan-3-yl)ethyl]pent-3-enamide into its molecular formula.
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C18H20F5N3OS
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