You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(E)-1-[4-[4-(cyclopropylmethyl)piperazine-1-carbonyl]piperidin-1-yl]-3-phenylprop-2-en-1-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C23H31N3O2
assistant