You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-(3-fluorophenyl)-6-[(4-methoxyphenyl)methyl]-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazole The above is the IUPAC name of a molecule. Write its molecular formula.
user
C17H13FN4OS
assistant