You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[[4-[(dimethylamino)methyl]phenyl]methyl]-3-ethyl-2-[[4-(2-oxopyrrolidin-1-yl)phenyl]methyl]guanidine;hydroiodide is the IUPAC name of a molecule. Please give its molecular formula.
user
C24H34IN5O
assistant