You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 2-[(4-bromophenyl)sulfonyl-[(3,4-dichlorophenyl)methyl]amino]-N-[(1S)-1-(4-methylsulfanylphenyl)ethyl]acetamide by IUPAC nomenclature, provide its molecular formula.
user
C24H23BrCl2N2O3S2
assistant