You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule N,N-dimethyl-3-[2-[[N'-methyl-N-[[2-(2,2,2-trifluoroethoxy)pyridin-4-yl]methyl]carbamimidoyl]amino]ethyl]benzamide;hydroiodide into molecular formula.
user
C21H27F3IN5O2
assistant