You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
5-[[3-[3-(2-chlorophenyl)-1H-pyrazol-5-yl]-3,4-dihydro-2H-chromen-6-yl]oxy]-3,4-dihydro-1H-1,8-naphthyridin-2-one is the IUPAC name of a molecule. Please give its molecular formula.
user
C26H21ClN4O3
assistant