You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 2-[[ethylamino-[3-(4-fluorophenyl)sulfanylpropylamino]methylidene]amino]-N-propylacetamide;hydroiodide by IUPAC nomenclature, provide its molecular formula.
user
C17H28FIN4OS
assistant