Synonyms: 5,12:6,11-Di-o-benzenodibenzo[a,e]cyclooctene,5,6,11,12-tetrahydro- (8CI); 9,10[9',10']-Anthracenoanthracene,9,10,11,16-tetrahydro- (7CI); Anthracene, dimer (6CI);5,6,11,12-Tetrahydro-5,12[1',2']:6,11[1'',2'']-dibenzenodibenzo[a,e]cyclooctene;Anthracene photodimer; Di-p-anthracene; Dianthracene; NSC 52620