You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[(Z)-(5-bromo-2-prop-2-ynoxyphenyl)methylideneamino]-2-(2,3-dichlorophenoxy)acetamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C18H13BrCl2N2O3
assistant