You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 1-ethyl-3-[3-(3-methoxyphenoxy)propyl]-2-[(3-propan-2-yl-1,2-oxazol-5-yl)methyl]guanidine;hydroiodide .
user
C20H31IN4O3
assistant