You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named tert-butyl 3-[[[N-[3-(azepan-1-yl)propyl]-N'-methylcarbamimidoyl]amino]methyl]piperidine-1-carboxylate;hydroiodide by IUPAC nomenclature, provide its molecular formula.
user
C22H44IN5O2
assistant