You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(5E)-5-[(4-morpholin-4-yl-3-nitrophenyl)methylidene]-3-propyl-2-sulfanylidene-1,3-thiazolidin-4-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C17H19N3O4S2
assistant