You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 3-[[[(2R)-oxolane-2-carbonyl]amino]carbamoyl]-N-[3-(trifluoromethyl)phenyl]benzenesulfonamide by IUPAC nomenclature, provide its molecular formula.
user
C19H18F3N3O5S
assistant