You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[4-(4-chloro-2-fluorophenoxy)-3-(3-methyl-[1,2,4]triazolo[4,3-a]pyridin-6-yl)phenyl]-4-fluorobenzenesulfonamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C25H17ClF2N4O3S
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