You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[[4-(4-fluorophenoxy)phenyl]methyl]-6-(4-oxo-2-sulfanylidene-1H-quinazolin-3-yl)hexanamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C27H26FN3O3S
assistant