You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule (5E)-3-[2-(3,4-dimethoxyphenyl)ethyl]-5-[(5-methylfuran-2-yl)methylidene]-2-sulfanylidene-1,3-thiazolidin-4-one ?
user
C19H19NO4S2
assistant