You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(E)-3-[5-[(E)-3-[3-(4-methylpiperazin-1-yl)phenyl]-3-oxoprop-1-enyl]pyridin-2-yl]prop-2-enoic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C22H23N3O3
assistant