You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2,2,3,3,4,4-hexafluoro-4-[3-(4-nitrophenyl)-1H-1,2,4-triazol-5-yl]butanoic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C12H6F6N4O4
assistant