You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 7-tert-butyl-3-methyl-6-[(2-methyl-1,2,4-triazol-3-yl)methoxy]-[1,2,4]triazolo[4,3-b]pyridazine;1-fluoro-2-methylbenzene .
user
C21H26FN7O
assistant