You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-(1-phenylethyl)-2-[[2-[4-(trifluoromethyl)pyrimidin-2-yl]sulfanylacetyl]amino]benzamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C22H19F3N4O2S
assistant