You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[11-[4-phenyl-6-(3-phenylphenyl)-1,3,5-triazin-2-yl]indolo[2,3-a]carbazol-12-yl]benzo[e][1,3]benzothiazole is the IUPAC name of a molecule. Please give its molecular formula.
user
C50H30N6S
assistant