You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
ethyl 3-[3-fluoro-4-(methylsulfonylmethyl)phenyl]-7-[1-(piperidin-4-ylmethoxy)ethyl]-1H-indole-2-carboxylate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C27H33FN2O5S
assistant