You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named [(2S)-1-(4-fluoroanilino)-1-oxopropan-2-yl] 5,6,7,8-tetrahydro-4H-cyclohepta[b]thiophene-2-carboxylate by IUPAC nomenclature, provide its molecular formula.
user
C19H20FNO3S
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