You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named N-[4-(4-bromo-2-fluoroanilino)-1-(methoxymethyl)-5-methyl-6-oxopyridin-3-yl]-1-(2-hydroxyethyl)cyclopropane-1-sulfonamide by IUPAC nomenclature, provide its molecular formula.
user
C19H23BrFN3O5S
assistant