You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 1-[3-[[[ethylamino-(2-methylpropylamino)methylidene]amino]methyl]pyridin-2-yl]piperidine-3-carboxamide;hydroiodide by IUPAC nomenclature, provide its molecular formula.
user
C19H33IN6O
assistant