You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
5-[4-[2-chloro-6-(trifluoromethyl)benzoyl]-4,5,6,7-tetrahydro-1H-indazol-3-yl]pyridine-2-carboxylic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C21H15ClF3N3O3
assistant