You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-[(3S)-3-[N'-[(Z)-benzylideneamino]carbamimidoyl]sulfanyl-2,5-dioxopyrrolidin-1-yl]benzoate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H15N4O4S-
assistant