You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[4-[N-[2-(2-fluorophenyl)cyclopropyl]-N'-methylcarbamimidoyl]piperazin-1-yl]-N-(2-methoxyethyl)acetamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C20H30FN5O2
assistant