You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule butyl (11Z)-11-[3-[4-(4-chlorophenyl)-4-hydroxypiperidin-1-yl]propylidene]-6H-benzo[c][1]benzoxepine-2-carboxylate ?
user
C33H36ClNO4
assistant