You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[[2-(2-ethoxyethoxy)-4-methylphenyl]methyl]-1-ethyl-3-[(2-phenyl-1,3-oxazol-4-yl)methyl]guanidine;hydroiodide is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H33IN4O3
assistant