You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[(2S)-1-(2,4-dichlorophenyl)-3-[(2,4-dichlorophenyl)methoxy]propan-2-yl]imidazole The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H16Cl4N2O
assistant