You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-(3-aminoprop-1-ynyl)-N-[1-(dimethylamino)propan-2-yl]-N-ethylpyridine-2-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C16H24N4O
assistant