You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-(4-amino-1,2,5-oxadiazol-3-yl)-N-[(E)-1-(4-fluorophenyl)ethylideneamino]-5-[(4-methylphenyl)sulfanylmethyl]triazole-4-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C21H19FN8O2S
assistant