You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(6S)-N-(3-chlorophenyl)-3-[(Z)-1-(4-fluorophenyl)ethylideneamino]-2-imino-4-oxo-1,3-thiazinane-6-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H16ClFN4O2S
assistant