You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-ethyl-2-[2-hydroxy-2-(5-methylfuran-2-yl)propyl]-3-(2-methyl-3-morpholin-4-ylpropyl)guanidine;hydroiodide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H35IN4O3
assistant