You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(Z)-[amino-[4-[[[3-cyano-4-(furan-3-yl)-6-thiophen-2-ylpyridin-2-yl]amino]methyl]phenyl]methylidene]-hydrazinylazanium is the IUPAC name of a molecule. Please give its molecular formula.
user
C22H20N7OS+
assistant