You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[2-(3,4-dimethylphenyl)-3-[[2-(trifluoromethyl)phenyl]methyl]benzimidazol-5-yl]oxy-N,N-dimethylpropan-1-amine is the IUPAC name of a molecule. Please give its molecular formula.
user
C28H30F3N3O
assistant