You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (1R,2R,3S,4R,6R,7S,8R,9R)-1,3,7,8,9,10,10-heptachlorotetracyclo[5.2.1.02,6.04,8]decan-5-one by IUPAC nomenclature, provide its molecular formula.
user
C10H5Cl7O
assistant