You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 2-chloro-N-(3-cyano-4,5,6,7-tetrahydro-1-benzothiophen-2-yl)-4,5-difluorobenzamide by IUPAC nomenclature, provide its molecular formula.
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C16H11ClF2N2OS
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