You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-chloro-N-(10-hydroxy-2,7-dimethyl-3,4-dihydro-1H-pyrido[1,2-b]indazol-2-yl)-4-(1,2,4-triazol-1-yl)benzamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C22H21ClN6O2
assistant