You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 5-bromo-N-[4-(2,3-dihydroindol-1-ylsulfonyl)phenyl]-2-(2-phenylethoxy)benzamide by IUPAC nomenclature, provide its molecular formula.
user
C29H25BrN2O4S
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