You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (3aS,5aR,8aS,8bR)-2,7-dibenzyl-3a-nitro-5,8a-bis(trifluoromethyl)-1,3,5a,6,8,8b-hexahydropyrrolo[3,4-e]isoindole by IUPAC nomenclature, provide its molecular formula.
user
C26H25F6N3O2
assistant