Similar names: 1,2,4-Methenocyclopenta[cd]pentalene-5-carboxaldehyde, 2,2a,3,3,4,7-hexachlorodecahydro-, (1R,2R,2aR,4S,4aS,5R,6aR,6bR,7S)-rel-; 1,2,4-Methenocyclopenta[cd]pentalene-5-carboxaldehyde, 2,2a,3,3,4,7-hexachlorodecahydro-, (1α,2β,2aβ,4β,4aβ,5β,6aβ,6bβ,7S*)- (8CI); rel-(1R,2R,2aR,4S,4aS,5R,6aR,6bR,7S)-2,2a,3,3,4,7-Hexachlorodecahydro-1,2,4-methenocyclopenta[cd]pentalene-5-carboxaldehyde; 4,5,6,7,8,8-Hexachlorohexahydro-4,7-methano-3,5,6-methenoindan-1-carboxaldehyde; Endrin aldehyde; SD 7442