You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-[[5-(2-fluoroanilino)-1,3,4-thiadiazol-2-yl]sulfanylmethyl]-7-methylchromen-2-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C19H14FN3O2S2
assistant