You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-[[4-[[4-chloro-6-(3-methylanilino)-1,3,5-triazin-2-yl]amino]-2-methylphenyl]diazenyl]naphthalene-1,5-disulfonic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C27H22ClN7O6S2
assistant