You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-amino-6-(4-fluoro-2-nitrophenyl)-5,7-dihydro-4H-thieno[2,3-c]pyridine-3-carbonitrile The above is the IUPAC name of a molecule. Write its molecular formula.
user
C14H11FN4O2S
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