You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named [7-bromo-1-(difluoromethoxy)-6-(3,4-dimethoxyphenyl)-6H-benzo[c]chromen-8-yl]methanesulfonamide by IUPAC nomenclature, provide its molecular formula.
user
C23H20BrF2NO6S
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