You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-amino-5-[[3-chloro-4-[(2,4-dichlorophenyl)methoxy]-5-methoxyphenyl]methylidene]-1,3-thiazol-4-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C18H13Cl3N2O3S
assistant