You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named N-(5,6,7,8-tetrahydroquinolin-8-yl)-N-(2,2,2-trifluoroethyl)thiophene-2-carboxamide by IUPAC nomenclature, provide its molecular formula.
user
C16H15F3N2OS
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