You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-fluoro-4-[6-fluoro-4-[4-[5-(trifluoromethyl)-1,2,4-oxadiazol-3-yl]piperazin-1-yl]quinazolin-8-yl]benzoic acid;hydrochloride is the IUPAC name of a molecule. Please give its molecular formula.
user
C22H16ClF5N6O3
assistant