You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(E)-N-[5-[(4-nitrophenyl)methylsulfanyl]-1,3,4-thiadiazol-2-yl]-3-phenylprop-2-enamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C18H14N4O3S2
assistant