You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance (4R)-4-[4-(trifluoromethylsulfanyl)phenyl]-1,4-dihydro-[1,3,5]triazino[1,2-a]benzimidazol-2-amine .
user
C16H12F3N5S
assistant