You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-[4-[(3,4-dimethoxyphenyl)methyl]piperazin-1-yl]-N-(3-fluorophenyl)sulfanyl-N-methylaniline;ethane is the IUPAC name of a molecule. Please give its molecular formula.
user
C28H36FN3O2S
assistant