You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(1R)-1-[2-(2-fluoroethyl)-4-(trifluoromethyl)phenyl]-N-pyrimidin-2-yl-2,3-dihydro-1H-indene-5-sulfonamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C22H19F4N3O2S
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