You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule [[9,9-dimethyl-7-[C-[6-[3-(trifluoromethyl)phenyl]pyridine-2-carboximidoyl]sulfanylcarbonimidoyl]fluoren-2-yl]-[6-[3-(trifluoromethyl)phenyl]pyridine-2-carboximidoyl]sulfanylmethylidene]azanium ?
user
C43H31F6N6S2+
assistant