You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 1-ethyl-3-[3-(4-fluorophenoxy)-2-hydroxypropyl]-2-[(5-methylthiophen-2-yl)methyl]guanidine;hydroiodide ?
user
C18H25FIN3O2S
assistant