1,2,3,4,5,5-Hexachloro-1,3-cyclopentadiene 1,3-Cyclopentadiene, 1,2,3,4,5,5-hexachloro- 1,3-Cyclopentadiene, hexachloro- 77-47-4 C 56 C56 Cyclopentadiene, hexachloro- Graphlox HRS 1655 Hexachlorcyklopentadien Hexachloro-1,3-cyclopentadiene Hexachlorocyclopentadiene NCI-C55607 NSC9235 Perchloro-1,3-cyclopentadiene Perchlorocyclopentadiene WLN: L5 AHJ AG AG BG CG DG EG