You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 1-[2-(3-ethyl-1,2,4-triazol-4-yl)ethyl]-2-methyl-3-[(4-piperidin-1-ylsulfonylphenyl)methyl]guanidine;hydroiodide into molecular formula.
user
C20H32IN7O2S
assistant