You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2E)-2-cyano-2-[(5E)-5-[[4-(difluoromethoxy)-3-methoxyphenyl]methylidene]-4-oxo-3-prop-2-enyl-1,3-thiazolidin-2-ylidene]acetamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C18H15F2N3O4S
assistant