You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule (5E)-5-[[1-[(2-fluorophenyl)methyl]-2-methylindol-3-yl]methylidene]-3-propyl-2-sulfanylidene-1,3-thiazolidin-4-one ?
user
C23H21FN2OS2
assistant