You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-(chloromethoxy)-N-[[2-[(Z)-2-chloroprop-1-enyl]-4-fluorophenyl]methyl]-4-methoxy-N-methylaniline is the IUPAC name of a molecule. Please give its molecular formula.
user
C19H20Cl2FNO2
assistant