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 5-[(2,4-dichlorophenyl)methyl]-3-(trifluoromethoxy)benzimidazolo[1,2-a]quinoxalin-6-one .
user
C22H12Cl2F3N3O2
assistant