You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[3-[[5-chloro-2-(4-fluoro-2-methoxy-5-nitroanilino)pyrimidin-4-yl]amino]-4-propan-2-ylsulfanylphenyl]acetamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C22H22ClFN6O4S
assistant