You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-[2-[(3-chlorophenyl)sulfonylamino]ethyl]-1,2-dimethyl-1-(oxolan-3-ylmethyl)guanidine;hydroiodide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C16H26ClIN4O3S
assistant