You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[4-chloro-3-(trifluoromethyl)phenyl]-2-[[5-(4-fluorophenyl)-1,3,4-oxadiazol-2-yl]methyl-methylamino]acetamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H15ClF4N4O2
assistant