You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1,2,3,6,7,8-hexadeuterio-4-(10-naphthalen-1-ylanthracen-9-yl)-9-(2,3,4,5,6-pentadeuteriophenyl)dibenzofuran is the IUPAC name of a molecule. Please give its molecular formula.
user
C42H26O
assistant