3,6-Endomethylene-4-cyclohexene-1,2-dicarboximide 3,6-Endomethylenephthalimide, 1,2,3,4-tetrahydro- 3,6-Endomethylenetetrahydrophthalimide 3647-74-3 4,7-Methano-1H-isoindole-1,3(2H)-dione, 3a,4,7,7a-tetrahydro- 5-Norbornene-2,3-dicarboximide Bicyclo(2.2.1)hept-5-ene-2,3-dicarboximide K 2154 K-2154 NSC 147237 Norborn-5-ene-2,3-cis-exo-dicarboximide Norendimide cis-3,6-Endomethylene-delta4-tetrahydrophthalimide