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-ethyl-3-[3-(2-oxoazepan-1-yl)propyl]-2-[[1-(thiophen-2-ylmethyl)piperidin-4-yl]methyl]guanidine;hydroiodide into molecular formula.
user
C23H40IN5OS
assistant