You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (3aR,7aS)-2-[1-(1H-imidazol-5-ylsulfonyl)azetidin-3-yl]-3a,4,7,7a-tetrahydroisoindole-1,3-dione by IUPAC nomenclature, provide its molecular formula.
user
C14H16N4O4S
assistant