You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-N-[(3R)-1,1-dioxothiolan-3-yl]-4-N-[(3S)-1,1-dioxothiolan-3-yl]benzene-1,4-diamine The above is the IUPAC name of a molecule. Write its molecular formula.
user
C14H20N2O4S2
assistant