You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule ethyl 2-[2-bromo-4-[(Z)-[[(2R)-2-[[(2S)-2-(2,4-dichlorophenoxy)propanoyl]amino]-3-phenylpropanoyl]hydrazinylidene]methyl]-6-ethoxyphenoxy]acetate ?
user
C31H32BrCl2N3O7
assistant