You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-(2,4-dichlorophenyl)-3-(1-methylpiperidin-3-yl)-5,6,7,8-tetrahydro-4H-pyrazolo[3,4-b]azepine The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H24Cl2N4
assistant