You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named ethyl 4-[4-(3-fluorobenzoyl)-3-methylpiperazine-1-carbonyl]-6-methyl-2-phenylpyrimidine-5-carboxylate is given. What is its corresponding molecular formula?
user
C27H27FN4O4
assistant