You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 4-ethoxy-N'-methyl-N-[[6-(2-methylimidazol-1-yl)pyridin-3-yl]methyl]piperidine-1-carboximidamide into molecular formula.
user
C19H28N6O
assistant