You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-(4-methyl-3-oxo-1,4-benzoxazin-8-yl)-2-(2,2,2-trifluoroacetyl)-1,3-dihydroisoindole-5-sulfonamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C19H16F3N3O5S
assistant