You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 5-[4-[4-[2-[4-(2,4-dichlorophenyl)-1-ethylimidazol-2-yl]ethenyl]phenyl]phenoxy]pyridine-3-carboxylic acid ?
user
C31H23Cl2N3O3
assistant