1,2,3,4,5,5-Hexachloro-1,3-cyclopentadiene 1,3-Cyclopentadiene, 1,2,3,4,5,5-hexachloro- 1,3-Cyclopentadiene, hexachloro- 4-05-00-00381 (Beilstein Handbook Reference) 77-47-4 AI3-15558 BRN 0976722 C 56 C-56 C56 CCRIS 5919 Caswell No. 478 Cyclopentadiene, hexachloro- EINECS 201-029-3 EPA Pesticide Chemical Code 027502 Graphlox HEXACHLOROCYCLOPENTADIENE HRS 1655 HSDB 4011 Hexachlorcyklopentadien [Czech] Hexachloro-1,3-cyclopentadiene Hexachlorocyclopentadiene [UN2646] [Poison] NCI-C55607 NSC 9235 Perchloro-1,3-cyclopentadiene Perchlorocyclopentadiene RCRA waste no. U130 RCRA waste number U130 UN2646