You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(5Z)-5-[(4-methoxyphenyl)methylidene]-3-[2-[(5E)-5-[(4-methoxyphenyl)methylidene]-4-oxo-2-sulfanylidene-1,3-thiazolidin-3-yl]ethyl]-2-sulfanylidene-1,3-thiazolidin-4-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C24H20N2O4S4
assistant