You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[5-[2-(5-pyrimidin-5-yl-1H-pyrazolo[3,4-c]pyridin-3-yl)-1H-imidazo[4,5-c]pyridin-4-yl]thiophen-2-yl]ethanone is the IUPAC name of a molecule. Please give its molecular formula.
user
C22H14N8OS
assistant