You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule N-[[4-[5-(3,5-dichlorophenyl)-5-(trifluoromethyl)-1,3-oxazolidin-3-yl]-2-(trifluoromethyl)phenyl]methyl]-2-methylsulfinylacetamide into molecular formula.
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C21H18Cl2F6N2O3S
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