You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[5-(2-aminopyrimidin-5-yl)-1-tert-butyl-5,6-dihydrobenzimidazol-2-yl]benzohydrazide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H25N7O
assistant