You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[(2-ethoxy-4-methylphenyl)methyl]-1-ethyl-3-[2-(1-methylpyrazol-4-yl)ethyl]guanidine;hydroiodide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H30IN5O
assistant