You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(E)-3-(4-hydroxy-3-methoxy-5-nitrophenyl)-1-[3-(trifluoromethyl)phenyl]prop-2-en-1-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C17H12F3NO5
assistant