You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 4-(2-chloro-4-fluorobenzoyl)-6-methylheptanoic acid;1-(2-chloro-4-fluorophenyl)-4-methylpentan-1-one;ethyl 4-(2-chloro-4-fluorobenzoyl)-6-methylheptanoate .
user
C44H54Cl3F3O7
assistant