You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[(5-cyano-3-cyclopropyl-2,6-dioxopyrimidin-1-yl)methyl]-1-ethyl-N,N-dimethylbenzimidazole-5-sulfonamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C20H22N6O4S
assistant