You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(E)-3-(2-bromophenyl)-1-[4-(2-morpholin-4-ylacetyl)piperazin-1-yl]prop-2-en-1-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H24BrN3O3
assistant