You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 2-methyl-1-[2-methyl-3-(4-methylpiperazin-1-yl)propyl]-3-(2-phenylsulfanylpropyl)guanidine;hydroiodide .
user
C20H36IN5S
assistant