| Synonyms: | Perchlorofulvalene;octachlorofulvalene;1,2,3,4-Tetrachloro-5-(2,3,4,5-tetrachloro-2,4-cyclopentadien-1-ylidene)-1,3-cyclopentadiene;2,2',3,3',4,4',5,5'-Octachloro-Δ1,1'-bi[2,4-cyclopentadiene];2,2',3,3',4,4',5,5'-Octachloro-Δ1,1'-bi[cyclopenta-2,4-diene];Octachloropentafulvalene;1,2,3,4-tetrachloro-5-(2,3,4,5-tetrachlorocyclopenta-2,4-dien-1-ylidene)cyclopenta-1,3-diene;1,3-Cyclopentadiene, 1,2,3,4-tetrachloro-5-(2,3,4,5-tetrachloro-2,4-cyclopentadien-1-ylidene)- |