You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
7-[[1-(3-chloro-4-fluorophenyl)triazol-4-yl]methyl]-1,3-dimethylpurine-2,6-dione is the IUPAC name of a molecule. Please give its molecular formula.
user
C16H13ClFN7O2
assistant