You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named [4-[4-[[4-[4-(4-butoxybenzoyl)oxybenzoyl]oxybenzoyl]-butylcarbamoyl]phenoxy]carbonylphenyl] 4-butoxybenzoate by IUPAC nomenclature, provide its molecular formula.
user
C54H51NO12
assistant