3424-05-3 4-(Dichloromethylene)-1,2,3,3,5,5-hexachlorocyclopentene 4-05-00-00388 (Beilstein Handbook Reference) BRN 2215361 Cyclopentene, 1,2,3,3,5,5-hexachloro-4-(dichloromethylene)- Cyclopentene, 4-(dichloromethylene)-1,2,3,3,5,5-hexachloro- Cyclopentene, hexachloro-4-(dichloromethylene)- (8CI) Hexachloro-4-(dichloromethylene)cyclopentene Perchloro-4-methylenecyclopentene Perchloromethylene-3-cyclopentene Perchloromethylene-delta(sup 3)-cyclopentene