1,3-Cyclopentadiene, 1,2,3,4-tetrachloro-5-(2,3,4,5-tetrachloro- 2,4-cyclopentadiene-1-ylidene)- 1,3-Cyclopentadiene, 1,2,3,4-tetrachloro-5-(2,3,4,5-tetrachloro-2,4-cyclopentadien-1-ylidene)- (9CI) 6298-65-3 Bi-2,4-cyclopentadien-1-ylidene, 2,2',3,3',4,4',5,5'-octachloro- (8CI) Bi-2,4-cyclopentadiene-1-ylidene, 2,2',3,3',4,4',5,5'-octachloro- (8CI) Bicyclopentadienylidene, octachloro- (7CI) NSC 37653 NSC 41875 Octachlorofulvalene Octachloropentafulvalene Perchlorofulvalene