You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[2-(cyclobutylmethylsulfamoyl)ethyl]-2-methyl-3-(2-phenoxyethyl)guanidine;hydroiodide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C17H29IN4O3S
assistant