You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name N-[2-(3,4-dihydro-1H-isoquinolin-2-yl)-2-oxoethyl]-N-[3-(trifluoromethyl)phenyl]methanesulfonamide into its molecular formula.
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C19H19F3N2O3S
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