You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-(2,3-dihydro-1,4-benzodioxin-6-yl)-4-[(3R)-1,1-dioxothiolan-3-yl]sulfonylbenzamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H19NO7S2
assistant