You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 2-[2-(3-chloro-4-methoxyphenyl)ethenyl]-4,6-bis(trichloromethyl)-1,3,5-triazine by IUPAC nomenclature, provide its molecular formula.
user
C14H8Cl7N3O
assistant