You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(5Z)-5-[(5-bromo-2,4-diethoxyphenyl)methylidene]-3-(2-methoxyethyl)-2-sulfanylidene-1,3-thiazolidin-4-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C17H20BrNO4S2
assistant