You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-(3-bromo-1-methylindazol-5-yl)-6-ethyl-5-methyl-7-(4-methylphenyl)-1,3-benzothiazole is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H22BrN3S
assistant