You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
ethyl N-[(3S,4S)-4-[(4-chlorophenyl)sulfonylamino]-1,1-dioxothiolan-3-yl]carbamate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C13H17ClN2O6S2
assistant