You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-naphthalen-1-yl-5-[3-(trifluoromethyl)anilino]-1,3-thiazolidine-2,4-dione is the IUPAC name of a molecule. Please give its molecular formula.
user
C20H13F3N2O2S
assistant