You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
methyl (2E)-2-[(2E)-2-[[4-(3-cyanopyridin-2-yl)oxyphenyl]methylidenehydrazinylidene]-4-oxo-1,3-thiazolidin-5-ylidene]acetate is the IUPAC name of a molecule. Please give its molecular formula.
user
C19H13N5O4S
assistant