You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
7-[2-(2,4-difluorophenyl)imidazo[1,2-a]pyridin-6-yl]-2,3-dihydro-1H-inden-1-ol The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H16F2N2O
assistant