You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(5Z)-5-(anthracen-9-ylmethylidene)-3-[(2-chloro-4-fluorophenyl)methyl]-1,3-thiazolidine-2,4-dione is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H15ClFNO2S
assistant