You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-(N-(4-ethoxyphenyl)sulfonyl-4-fluoroanilino)-N-(2-oxo-3-propan-2-yl-1,3-benzothiazol-6-yl)acetamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C26H26FN3O5S2
assistant