You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
methyl 5-[[2-[benzenesulfonyl-[(4-bromophenyl)methyl]amino]acetyl]amino]-1-benzothiophene-2-carboxylate is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H21BrN2O5S2
assistant