You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 5-ethylsulfonyl-N-methyl-N-[4-(2-methylphenyl)pyridin-3-yl]-2-(trifluoromethyl)pyridine-4-carboxamide into its molecular formula.
user
C22H20F3N3O3S
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