You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named N-[2-(2,5-difluorophenyl)-3H-benzimidazol-5-yl]-3-[methoxy(methyl)sulfamoyl]benzamide is given. What is its corresponding molecular formula?
user
C22H18F2N4O4S
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