You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[3-(4-cyanophenoxy)-2,3-dihydro-1H-inden-5-yl]-N-ethyl-3-(trifluoromethyl)benzenesulfonamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H21F3N2O3S
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