You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule tert-butyl N-[(3-bromo-1-benzothiophen-2-yl)-[[4-fluoro-3-(trifluoromethyl)phenyl]methyl]sulfinamoyl]carbamate .
user
C21H19BrF4N2O3S2
assistant