You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-(3,5-dimethoxyphenyl)-2-[4-[2-(methylamino)ethyl]piperidin-1-yl]acetamide;hydrochloride The above is the IUPAC name of a molecule. Write its molecular formula.
user
C18H30ClN3O3
assistant