You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[2-(2-fluoro-5-nitroanilino)-2-oxoethyl] (E)-3-(2,3-dimethoxyphenyl)prop-2-enoate is the IUPAC name of a molecule. Please give its molecular formula.
user
C19H17FN2O7
assistant