You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-nitro-N-[5-pyrrolidin-1-ylsulfonyl-2-(2,2,2-trifluoroethoxy)phenyl]benzamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H18F3N3O6S
assistant