You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-(3,4-dimethoxyphenyl)-N-[(Z)-(4-fluorophenyl)methylideneamino]-1,3-thiazol-2-amine The above is the IUPAC name of a molecule. Write its molecular formula.
user
C18H16FN3O2S
assistant