You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named 2,3,5,6-tetrachloro-N-[4-nitro-2-(trifluoromethyl)phenyl]pyridin-4-amine is given. What is its corresponding molecular formula?
user
C12H4Cl4F3N3O2
assistant