You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule identified by (1R,2S,7S,8S)-1,8,9,10-tetrachloro-11,11-dimethoxytricyclo[6.2.1.02,7]undeca-4,9-diene ?
user
C13H14Cl4O2
assistant