3,6-Methano-8H-1,5,7-trioxacyclopenta[ij]cycloprop[a]azulene-4,8(3H)-dione,hexahydro-2a-hydroxy-8b-methyl-9-(1-methylethenyl)-, [1aR-(1aa,2ab,3b,6b,6ab,8aS*,8bb,9R*)]-; (-)-Picrotoxinin;3,6-Methano-8H-1,5,7-trioxacyclopenta[ij]cycloprop[a]azulene-4,8(3H)-dione,hexahydro-2a-hydroxy-8b-methyl-9-(1-methylethenyl)-,(1aR,2aR,3S,6R,6aS,8aS,8bR,9R)-; NSC 129537; Picrotoxinin (6CI,7CI); 

3,6-Methano-8H-1,5,7-trioxacyclopenta[ij]cycloprop[a]azulene-4,8(3H)-dione,hexahydro-2a-hydroxy-8b-methyl-9-(1-methylethyl)-, [1aR-(1aa,2ab,3b,6b,6ab,8aS*,8bb,9S*)]-; a-Dihydropicrotoxinin;3,6-Methano-8H-1,5,7-trioxacyclopenta[ij]cycloprop[a]azulene-4,8(3H)-dione,hexahydro-2a-hydroxy-8b-methyl-9-(1-methylethyl)-,(1aR,2aR,3S,6R,6aS,8aS,8bR,9S)-; Picrotoxinin, a-dihydro- (6CI,8CI); Dihydropicrotoxinin;