You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 4-[(9Z)-2-[4-cyano-3-(trifluoromethyl)phenyl]-9-isocyanoiminoindeno[1,2-b]pyrazin-3-yl]-2-(trifluoromethyl)benzonitrile into molecular formula.
user
C28H10F6N6
assistant